Ivysaur, Veunaur, tomato, potato. I was close! XP But anyway, the wings on Charizard look much better now. ^^
tbh, I didn't really a notice a difference between the two Natu revamps. You did a pretty good job on it, though I think the shape needs to be fixed a tad bit more, especially the feet as they look really weird (mainly because of the black diving it through the middle). Also, the darker shadow on the main body needs to be a bit more rounded; at the bottom left it just goes in a straight line when it should curve more to shot the roundness of the body. Otherwise it looks quite good.
I really like the colours you chose for Dodrio. Random, but they look quite cool together - nice choices. Looks great, nothing negative to say about it.
~Psychic