diff --git a/crates/engine/assets/textures/entity/player.png b/crates/engine/assets/textures/entity/player.png
index 176b73a6..2b2fddfe 100644
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diff --git a/mods/base/assets/textures/entity/armor/diamond_1.png b/mods/base/assets/textures/entity/armor/diamond_1.png
index 96a61828..b0e92a2b 100644
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diff --git a/mods/base/assets/textures/entity/armor/diamond_2.png b/mods/base/assets/textures/entity/armor/diamond_2.png
index b8a592ac..4bb74cf0 100644
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diff --git a/mods/base/assets/textures/entity/armor/gold_1.png b/mods/base/assets/textures/entity/armor/gold_1.png
index 69129fa9..f2c9dc00 100644
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diff --git a/mods/base/assets/textures/entity/armor/gold_2.png b/mods/base/assets/textures/entity/armor/gold_2.png
index c17bc394..57915d31 100644
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diff --git a/mods/base/assets/textures/entity/armor/iron_1.png b/mods/base/assets/textures/entity/armor/iron_1.png
index ab4672c5..328cd145 100644
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diff --git a/mods/base/assets/textures/entity/armor/iron_2.png b/mods/base/assets/textures/entity/armor/iron_2.png
index e89bfebc..44871146 100644
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diff --git a/mods/base/assets/textures/entity/armor/leather_1.png b/mods/base/assets/textures/entity/armor/leather_1.png
index 7248c13d..c22306ec 100644
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diff --git a/mods/base/assets/textures/entity/armor/leather_2.png b/mods/base/assets/textures/entity/armor/leather_2.png
index d26233ee..73792663 100644
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diff --git a/mods/base/assets/textures/entity/chicken.png b/mods/base/assets/textures/entity/chicken.png
index 9231f958..8fd7d2f0 100644
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diff --git a/mods/base/assets/textures/entity/cow.png b/mods/base/assets/textures/entity/cow.png
index 82c30007..0338cf49 100644
Binary files a/mods/base/assets/textures/entity/cow.png and b/mods/base/assets/textures/entity/cow.png differ
diff --git a/mods/base/assets/textures/entity/pig.png b/mods/base/assets/textures/entity/pig.png
index dfd1c9f8..9b0a4338 100644
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diff --git a/mods/base/assets/textures/entity/sheep.png b/mods/base/assets/textures/entity/sheep.png
index 555dc130..3dd18a70 100644
Binary files a/mods/base/assets/textures/entity/sheep.png and b/mods/base/assets/textures/entity/sheep.png differ
diff --git a/mods/base/assets/textures/item/leather_chestplate.png b/mods/base/assets/textures/item/leather_chestplate.png
index 200c2d14..8824efeb 100644
Binary files a/mods/base/assets/textures/item/leather_chestplate.png and b/mods/base/assets/textures/item/leather_chestplate.png differ
diff --git a/mods/base/src/items.rs b/mods/base/src/items.rs
index f8f65e95..a94b0f90 100644
--- a/mods/base/src/items.rs
+++ b/mods/base/src/items.rs
@@ -148,7 +148,8 @@ pub fn register(r: &mut Registry) {
             let points = points[slot];
             let tag = ARMOR_SLOTS[slot];
             // Leggings are the inner layer, drawn closer to the body.
-            let (inflate, layer) = if slot == 2 { (0.5, 2) } else { (1.0, 1) };
+            let (inflate, layer) =
+                if mat == "leather" { if slot == 2 { (0.2, 2) } else { (0.4, 1) } } else { if slot == 2 { (0.5, 2) } else { (0.75, 1) } };
             r.item(Item::generated(format!("{mat}_{piece}")))
                 .durability(durability * dur)
                 .set(&ARMOR, Armor { points, toughness })
diff --git a/mods/base/src/mobs.rs b/mods/base/src/mobs.rs
index f12187ef..82e46153 100644
--- a/mods/base/src/mobs.rs
+++ b/mods/base/src/mobs.rs
@@ -2,6 +2,7 @@
 
 use weft_sdk::ai;
 use weft_sdk::*;
+use weft_sdk::abi::MeshVertex;
 
 pub static ZOMBIE: EntityKind = EntityKind::named("zombie");
 pub static SPIDER: EntityKind = EntityKind::named("spider");
@@ -31,6 +32,80 @@ fn vanilla_legs(x: f32, y: f32) -> [ModelPart; 4] {
     let leg = |name, px, pz| vanilla_part(name, [px, y, pz], &[([-2.0, 0.0, -2.0], [4.0, height, 4.0], [0.0, 16.0])]);
     [leg("leg0", -x, 7.0), leg("leg1", x, 7.0), leg("leg2", x, -5.0), leg("leg3", -x, -5.0)]
 }
+fn polygon(part: ModelPart, size: [f32; 2], uv: [f32; 4], two_sided: bool) -> ModelPart {
+    let [x, y, z] = part.pivot;
+    let [width, height] = size;
+    let [u, v, uv_width, uv_height] = uv;
+    let a = MeshVertex {
+        pos: [x, y, z],
+        uv: [u, v],
+    };
+    let b = MeshVertex {
+        pos: [x + width, y, z],
+        uv: [u + uv_width, v],
+    };
+    let c = MeshVertex {
+        pos: [x + width, y + height, z],
+        uv: [u + uv_width, v + uv_height],
+    };
+    let d = MeshVertex {
+        pos: [x, y + height, z],
+        uv: [u, v + uv_height],
+    };
+    if two_sided {
+        part.mesh(vec![a, b, c, a, c, d]).mesh(vec![a, c, b, a, d, c])
+    } else {
+        part.mesh(vec![a, b, c, a, c, d])
+    }
+}
+fn rotate_vertex(v: MeshVertex, pivot: [f32; 3], degrees: [f32; 3]) -> MeshVertex {
+    let [rx, ry, rz] = degrees.map(f32::to_radians);
+    let (mut x, mut y, mut z) = (
+        v.pos[0] - pivot[0],
+        v.pos[1] - pivot[1],
+        v.pos[2] - pivot[2],
+    );
+    let (s, c) = rx.sin_cos();
+    let (ny, nz) = (y * c - z * s, y * s + z * c);
+    y = ny;
+    z = nz;
+    let (s, c) = ry.sin_cos();
+    let (nx, nz) = (x * c + z * s, -x * s + z * c);
+    x = nx;
+    z = nz;
+    let (s, c) = rz.sin_cos();
+    let (nx, ny) = (x * c - y * s, x * s + y * c);
+    x = nx;
+    y = ny;
+    MeshVertex {
+        pos: [x + pivot[0], y + pivot[1], z + pivot[2]],
+        uv: v.uv,
+    }
+}
+fn polygon_at(part: ModelPart, offset: [f32; 3], size: [f32; 2], uv: [f32; 4], rotation: [f32; 3], two_sided: bool) -> ModelPart {
+    let anchor = [
+        part.pivot[0] + offset[0],
+        part.pivot[1] + offset[1],
+        part.pivot[2] + offset[2],
+    ];
+    let [x, y, z] = anchor;
+    let [width, height] = size;
+    let [u, v, uv_width, uv_height] = uv;
+    let make = |pos: [f32; 3], uv: [f32; 2]| rotate_vertex(
+        MeshVertex { pos, uv },
+        anchor,
+        rotation,
+    );
+    let a = make([x, y, z], [u, v]);
+    let b = make([x + width, y, z], [u + uv_width, v]);
+    let c = make([x + width, y + height, z], [u + uv_width, v + uv_height]);
+    let d = make([x, y + height, z], [u, v + uv_height]);
+    if two_sided {
+        part.mesh(vec![a, b, c, a, c, d]).mesh(vec![a, c, b, a, d, c])
+    } else {
+        part.mesh(vec![a, b, c, a, c, d])
+    }
+}
 
 /// Vanilla's creeper (`CreeperModel`): 64 x 32.
 fn creeper_model() -> Model {
@@ -62,18 +137,30 @@ fn skeleton_model() -> Model {
     .uv_size(64, 32)
 }
 
-/// Vanilla's sheep (`SheepModel` and `SheepFurModel`) in one texture: the sheep in the upper half,
-/// its wool in the lower, on boxes grown over it.
+/// Vanilla's sheep
 fn sheep_model() -> Model {
     let wool = |p: [f32; 2]| [p[0], p[1] + 32.0];
-    let head = vanilla_part("head", [0.0, 6.0, -8.0], &[([-3.0, -4.0, -6.0], [6.0, 6.0, 8.0], [0.0, 0.0])])
-        .cuboid([-3.0, -2.0, -4.0], [6.0, 6.0, 6.0], wool([0.0, 0.0]))
-        .inflated(0.6);
+    let head = vanilla_part("head", [0.0, 6.0, -8.0], &[(
+        [-4.0, -4.0, -6.0], [8.0, 8.0, 8.0], [0.0, 32.0]
+    )]);
     let body = vanilla_part("body", [0.0, 5.0, 2.0], &[([-4.0, -10.0, -7.0], [8.0, 16.0, 6.0], [28.0, 8.0])])
-        .cuboid([-4.0, -6.0, -7.0], [8.0, 16.0, 6.0], wool([28.0, 8.0]))
+        .cuboid([-4.5, -8.0, -9.0], [9.0, 18.0, 8.0], [16.0, 0.0])
         .inflated(1.75)
         .rotation(-90.0, 0.0, 0.0);
-    let mut parts = vec![head, body];
+    let left_ear = ModelPart::new("leftEar", [-4.0, 12.0, -9.0])
+        .cuboid([0.0, 6.5, -3.0], [3.0, 2.0, 1.0], [0.0, 0.0])
+        .rotation(0.0, 0.0, 15.0)
+        .mirrored()
+        .child_of(0);
+    let right_ear = ModelPart::new("rightEar", [4.0, 12.0, -9.0])
+        .cuboid([-3.0, 6.5, -3.0], [3.0, 2.0, 1.0], [0.0, 0.0])
+        .rotation(0.0, 0.0, -15.0)
+        .child_of(0);
+    let snout = ModelPart::new("snout", [4.0, 12.0, -9.0])
+        .cuboid([-5.5, 5.0, -6.0], [3.0, 3.0, 4.0], [0.0, 3.0])
+        .rotation(-15.0, 0.0, 0.0)
+        .child_of(0);
+    let mut parts = vec![head, body, left_ear, right_ear, snout];
     parts.extend(vanilla_legs(3.0, 12.0).map(|l| {
         l.cuboid([-2.0, -6.0, -2.0], [4.0, 6.0, 4.0], wool([0.0, 16.0]))
             .inflated(0.5)
@@ -83,14 +170,26 @@ fn sheep_model() -> Model {
 
 /// Vanilla's chicken: 64 x 32.
 fn chicken_model() -> Model {
-    let leg = |name, x| vanilla_part(name, [x, 19.0, 1.0], &[([-1.0, 0.0, -3.0], [3.0, 5.0, 3.0], [26.0, 0.0])]);
+    let leg = |name, x| polygon_at(
+        polygon(
+            ModelPart::new(name, [x, 5.0, 0.0]),
+            [1.0, -5.0],
+            [26.0, 3.0, 1.0, 5.0],
+            true,
+        ),
+        [-1.0, -4.9, -3.0],
+        [3.0, 3.0],
+        [27.0, 3.0, 3.0, 3.0],
+        [90.0, 0.0, 0.0],
+        true,
+    );
     Model::from(vec![
         vanilla_part(
             "head",
             [0.0, 15.0, -4.0],
             &[
                 ([-2.0, -6.0, -2.0], [4.0, 6.0, 3.0], [0.0, 0.0]),
-                ([-2.0, -4.0, -4.0], [4.0, 2.0, 2.0], [14.0, 0.0]),
+                ([-1.5, -4.0, -4.0], [3.0, 2.0, 2.0], [14.0, 0.0]),
                 ([-1.0, -2.0, -3.0], [2.0, 2.0, 2.0], [14.0, 4.0]),
             ],
         ),
@@ -99,6 +198,18 @@ fn chicken_model() -> Model {
         vanilla_part("wing1", [4.0, 13.0, 0.0], &[([-1.0, 0.0, -3.0], [1.0, 4.0, 6.0], [24.0, 13.0])]),
         leg("rightLeg", -2.0),
         leg("leftLeg", 1.0),
+        polygon(
+            ModelPart::new("comb", [0.0, 17.0, -7.0]),
+            [4.0, -3.0],
+            [31.0, 3.0, 4.0, 3.0],
+            true,
+        ).child_of(0).rotation(0.0, -90.0, 0.0),
+        polygon(
+            ModelPart::new("tail", [0.0, 13.0, 2.0]),
+            [6.0, -6.0],
+            [36.0, 3.0, 6.0, 6.0],
+            true,
+        ).rotation(0.0, -90.0, 0.0),
     ])
     .uv_size(64, 32)
 }
@@ -126,7 +237,16 @@ fn cow_model() -> Model {
         &[([-6.0, -10.0, -7.0], [12.0, 18.0, 10.0], [18.0, 4.0]), ([-2.0, 2.0, -8.0], [4.0, 6.0, 1.0], [52.0, 0.0])],
     )
     .rotation(-90.0, 0.0, 0.0);
-    let mut parts = vec![head, body];
+    let left_ear = ModelPart::new("leftEar", [-4.0, 12.0, -9.0])
+        .cuboid([0.0, 8.0, -3.0], [3.0, 2.0, 1.0], [18.0, 32.0])
+        .rotation(0.0, 0.0, 15.0)
+        .mirrored()
+        .child_of(0);
+    let right_ear = ModelPart::new("rightEar", [4.0, 12.0, -9.0])
+        .cuboid([-3.0, 8.0, -3.0], [3.0, 2.0, 1.0], [18.0, 32.0])
+        .rotation(0.0, 0.0, -15.0)
+        .child_of(0);
+    let mut parts = vec![head, body, left_ear, right_ear];
     parts.extend(vanilla_legs(4.0, 12.0));
     Model::from(parts).uv_size(64, 64)
 }
@@ -138,8 +258,17 @@ fn pig_model() -> Model {
         [0.0, 12.0, -6.0],
         &[([-4.0, -4.0, -8.0], [8.0, 8.0, 8.0], [0.0, 0.0]), ([-2.0, 0.0, -9.0], [4.0, 3.0, 1.0], [16.0, 16.0])],
     );
-    let body = vanilla_part("body", [0.0, 11.0, 2.0], &[([-5.0, -10.0, -7.0], [10.0, 16.0, 8.0], [28.0, 8.0])]).rotation(-90.0, 0.0, 0.0);
-    let mut parts = vec![head, body];
+    let body = vanilla_part("body", [0.0, 11.0, 2.0], &[([-5.0, -10.0, -7.0], [10.0, 17.0, 8.0], [28.0, 8.0])]).rotation(-90.0, 0.0, 0.0);
+    let left_ear = ModelPart::new("leftEar", [-4.0, 12.0, -9.0])
+        .cuboid([-1.0, -2.0, -4.0], [1.0, 5.0, 4.0], [0.0, 26.0])
+        .rotation(0.0, 0.0, -15.0)
+        .mirrored()
+        .child_of(0);
+    let right_ear = ModelPart::new("rightEar", [4.0, 12.0, -9.0])
+        .cuboid([0.0, -2.0, -4.0], [1.0, 5.0, 4.0], [0.0, 26.0])
+        .rotation(0.0, 0.0, 15.0)
+        .child_of(0);
+    let mut parts = vec![head, body, left_ear, right_ear];
     parts.extend(vanilla_legs(3.0, 18.0));
     Model::from(parts).uv_size(64, 64)
 }