Some are two legged, others are 4, still others have 6 limbs like centaurs, and even so others have a 4 legged creature and a two legged TV stand thing followin

Some are two legged, others are 4, still others have 6 limbs like centaurs, and even so others have a 4 legged creature and a two legged TV stand thing following them around. But I suspect their similar texture is because stable diffusion was trained on the official artwork for Pokemon rather than their in-game sprites/models, though that is just a guess.