I feel like your flower could use some more bulk, and his legs a bit more thought given to their movement/function. I know the usual drawings of venusaur are a little all over the place so far as that goes, but it's hard to interpret them at the moment.
well what im thinking that this would be a very old venasaur perhaps coming to the end of its life .. sick i know :p but his life cycle is that he wouldnt move at all , and that he is becoming rock and his flower will perhaps become a tree ? still undecided , hence the solid parts on his knees and shoulders , i do agree…