Fantastic art. You've done an excellent job at capturing the 'mon in motion, as well as showing some of its behavior. Something that I feel lacking in Pokemon is a conscious attempt to depict them as actual living creatures that inhabit specific ecosystems and behave/interact in different ways (although I feel they've been improving on this in the more recent games, New Pokemon Snap in particular).
So Walking Wake seems to be a theropod and Raging Bolt is a sauropod. If I were to guess what the inevitable paradox Entei will look like, I think maybe something ceratopsian?