Mob Revamp

Several mobs old and new have somewhat basic designs, or could be more complex in terms of actions. Squids could be redone because personally they have a very basic design and their mouths are somewhat creepy. Some other mobs have similar issues but I feel as though not all mobs are equal with mobs like piglins, phantoms, and goats having nice complex designs while bats, squids, cows, etc. Have very basic 2d designs