>>46933102creativity and inspiration also come from knowing things, whether it's mythology, literature, biology, art, or some other clever reference, which sometimes can alone make or break a design
quarantine crystal is a bit of a unique case because while he doesn't really follow the traditional "pokèmon" style his designs are very well thought out and generally aesthetically appealing
xenoverse and some sage designs aim to emulate the pokèmon style to the fullest and have dished out some truly amazing designs that rival some of gf's best. The first stepping stone would probably be to understand what makes pokèmon look like "pokemon". Look at some official designs, get used to how limbs, eyes, colours etc usually are, and then try out some neat concept
most people make the mistake of just making cartoon animals with not-pokemon like proportions, features, body parts, etc.