diff --git a/crates/border-wars/assets/tiles/forest.png b/crates/border-wars/assets/tiles/forest.png
new file mode 100644
index 0000000..d902377
Binary files /dev/null and b/crates/border-wars/assets/tiles/forest.png differ
diff --git a/crates/border-wars/assets/tiles/hill.png b/crates/border-wars/assets/tiles/hill.png
index d3a9ab8..0ac3d46 100644
Binary files a/crates/border-wars/assets/tiles/hill.png and b/crates/border-wars/assets/tiles/hill.png differ
diff --git a/crates/border-wars/src/main.rs b/crates/border-wars/src/main.rs
index 0187100..28fd968 100644
--- a/crates/border-wars/src/main.rs
+++ b/crates/border-wars/src/main.rs
@@ -9,7 +9,7 @@ use border_wars::scenes::ScenesPlugin;
 fn setup(mut writer: EventWriter<StartMapGeneration>) {
     writer.send(StartMapGeneration {
         seed: 7128,
-        radius: 50,
+        radius: 500,
     });
 }
 
diff --git a/crates/border-wars/src/map/renderer.rs b/crates/border-wars/src/map/renderer.rs
index 7fdb193..1b46a12 100644
--- a/crates/border-wars/src/map/renderer.rs
+++ b/crates/border-wars/src/map/renderer.rs
@@ -31,7 +31,7 @@ impl Tile {
     fn get_texture(&self, asset_server: &AssetServer) -> Handle<Image> {
         match self {
             Self::Grass => asset_server.load("tiles/grass.png"),
-            Self::Forest => asset_server.load("tiles/grass.png"),
+            Self::Forest => asset_server.load("tiles/forest.png"),
             Self::Hill => asset_server.load("tiles/hill.png"),
         }
     }
@@ -47,7 +47,7 @@ impl Tile {
                 x: 1250.0,
                 y: 1000.0,
             },
-            Self::Hill => Vec2 { x: 337.0, y: 740.0 },
+            Self::Hill => Vec2 { x: 1250.0, y: 1300.0 },
         }
     }
 }
@@ -77,7 +77,9 @@ fn render_map(
         );
 
         let scale_2d = tiles_size.0 / tile.get_image_size();
-        let scale = Vec3::new(scale_2d.x, scale_2d.y, 1.0);
+
+        // the y scale is the same as the x scale to keep the aspect ratio.
+        let scale = Vec3::new(scale_2d.x, scale_2d.x, 1.0);
 
         commands.entity(entity).insert(SpriteBundle {
             sprite: Sprite {
@@ -98,5 +100,5 @@ fn render_map(
 /// A simple sigmoid function to convert y position to z position.
 /// The return value is between 0 and 1.
 fn z_position_from_y(y: f32) -> f32 {
-    -1.0 / (1.0 + (-y * 110_f64.powi(-5) as f32).exp())
+    -1.0 / (1.0 + (-y * 110_f64.powi(-3) as f32).exp())
 }