>>14805761Most pokemon in gen 1 were a relatively realistic looking animal or mythological creature. Then you had your sentient objects, usually explained by toxic waste or radiation. Then the remaining ones were goofy one-offs like Mr Mime and Jynx which nobody fucking liked.
Problems with later gen designs:
Animals are no longer realistic, they are cartoony. They lack detail in the places you'd expect detail, and they have too much in the places that are supposed to be simple. Their plumage and coats have ridiculous patterns and colors that don't even match their types half the time.
Sentient objects went full retard. Every ghost type is "spirit possessing a _____" where in gen 1 we had actual ghosts. Plus, the designs are too busy again. There's like five or six colors per pokemon instead of two or three.