Here Enhanced Mobs 1.14.4 is a fairly high-quality resource pack, which is aimed at improving the textures and models of mobs, making them more realistic than in the usual vanilla minecraft.
Each improved mob has a full set of textures, which will either be selected randomly when spawning, or will depend on the appearance biome. But remember that for this resource pack to work correctly, you must install OptiFine.
How to install Enhanced Mobs
- Install Optifine HD
- Download Resource Pack
- Unzip it and copy to C:\Users\User_Name\AppData\Roaming\.minecraft\resourcepacks
- In the game settings, select the desired resource pack