Very nice!
This is an interesting Venusaur... you've given him a alligator feel. The only part of the drawing that's done wrong is the end of the mouth, the blue part ends in a point while his gum curves around. An actual background/scene would have made it much better. Some simple cell shading also would have made it better and perhaps different shades/tones of green on the leaves or something. Your drawing style is really good and interesting though and it'll be good to see your future work.