I was stupid when I made those resource locations

src/main/java/com/ninni/spawn/client/renderer/entity/HerringRenderer.java

@@ -16,7 +16,7 @@
 
 @Environment(value=EnvType.CLIENT)
 public class HerringRenderer extends MobRenderer<Herring, HerringModel<Herring>> {
-    private static final ResourceLocation HERRING_LOCATION = new ResourceLocation(MOD_ID,"textures/entity/fish/herring.png");
+    private static final ResourceLocation HERRING_LOCATION = new ResourceLocation(MOD_ID,"textures/entity/herring/herring.png");
 
     public HerringRenderer(EntityRendererProvider.Context context) {
         super(context, new HerringModel<>(context.bakeLayer(SpawnEntityModelLayers.HERRING)), 0.2f);

src/main/java/com/ninni/spawn/client/renderer/entity/SeahorseRenderer.java

@@ -18,8 +18,8 @@
 public class SeahorseRenderer extends MobRenderer<Seahorse, SeahorseModel<Seahorse>> {
     private final SeahorseModel<Seahorse> modelA = this.getModel();
     private final SeahorseModel<Seahorse> modelB;
-    private static final ResourceLocation MODEL_A_TEXTURE = new ResourceLocation(MOD_ID,"textures/entity/fish/seahorse_a.png");
-    private static final ResourceLocation MODEL_B_TEXTURE = new ResourceLocation(MOD_ID,"textures/entity/fish/seahorse_b.png");
+    private static final ResourceLocation MODEL_A_TEXTURE = new ResourceLocation(MOD_ID,"textures/entity/seahorse/seahorse_a.png");
+    private static final ResourceLocation MODEL_B_TEXTURE = new ResourceLocation(MOD_ID,"textures/entity/seahorse/seahorse_b.png");
 
     public SeahorseRenderer(EntityRendererProvider.Context context) {
         super(context, new SeahorseModel<>(context.bakeLayer(SpawnEntityModelLayers.SEAHORSE_SMALL)), 0.2F);

src/main/java/com/ninni/spawn/client/renderer/entity/feature/SeahorsePatternLayer.java

@@ -16,14 +16,14 @@
 
 @Environment(value= EnvType.CLIENT)
 public class SeahorsePatternLayer extends RenderLayer<Seahorse, SeahorseModel<Seahorse>> {
-    private static final ResourceLocation RIDGED = new ResourceLocation(MOD_ID, "textures/entity/fish/seahorse_a_pattern_1.png");
-    private static final ResourceLocation SHARP = new ResourceLocation(MOD_ID, "textures/entity/fish/seahorse_a_pattern_2.png");
-    private static final ResourceLocation HOODED = new ResourceLocation(MOD_ID, "textures/entity/fish/seahorse_a_pattern_3.png");
-    private static final ResourceLocation SPOTTED = new ResourceLocation(MOD_ID, "textures/entity/fish/seahorse_a_pattern_4.png");
-    private static final ResourceLocation BANDED = new ResourceLocation(MOD_ID, "textures/entity/fish/seahorse_b_pattern_1.png");
-    private static final ResourceLocation WAVY = new ResourceLocation(MOD_ID, "textures/entity/fish/seahorse_b_pattern_2.png");
-    private static final ResourceLocation RIBBED = new ResourceLocation(MOD_ID, "textures/entity/fish/seahorse_b_pattern_3.png");
-    private static final ResourceLocation CURLED = new ResourceLocation(MOD_ID, "textures/entity/fish/seahorse_b_pattern_4.png");
+    private static final ResourceLocation RIDGED = new ResourceLocation(MOD_ID, "textures/entity/seahorse/seahorse_a_pattern_1.png");
+    private static final ResourceLocation SHARP = new ResourceLocation(MOD_ID, "textures/entity/seahorse/seahorse_a_pattern_2.png");
+    private static final ResourceLocation HOODED = new ResourceLocation(MOD_ID, "textures/entity/seahorse/seahorse_a_pattern_3.png");
+    private static final ResourceLocation SPOTTED = new ResourceLocation(MOD_ID, "textures/entity/seahorse/seahorse_a_pattern_4.png");
+    private static final ResourceLocation BANDED = new ResourceLocation(MOD_ID, "textures/entity/seahorse/seahorse_b_pattern_1.png");
+    private static final ResourceLocation WAVY = new ResourceLocation(MOD_ID, "textures/entity/seahorse/seahorse_b_pattern_2.png");
+    private static final ResourceLocation RIBBED = new ResourceLocation(MOD_ID, "textures/entity/seahorse/seahorse_b_pattern_3.png");
+    private static final ResourceLocation CURLED = new ResourceLocation(MOD_ID, "textures/entity/seahorse/seahorse_b_pattern_4.png");
     private final SeahorseModel<Seahorse> modelA;
     private final SeahorseModel<Seahorse> modelB;