This is my favorite design in the entire topic, Elagune's third design. It proves a Fire/Grass type does
not have to have fire coming out of its [wherever], and has a nice blend of fire time and grass type in it, with a little emphasis on the grass typing in the leaves. Its red body symbolizes its fire type, while its design gives it a "powerful" look, both defensively and offensively.
This Pokemon is exotic and ancient in appearance, and probably lives in forests that surround a hulking volcano.
I have to agree with Dane, however, that the hands seem...odd. It gives it too much of a physical feel, and I think you should change that. However, I disagree with the addition of fire, because it will in turn destroy the serene and gentle (but powerful) look of the Pokemon, just like Dragonite.
A lot of people in this topic are simply going by what looks "awesome," but this art really found a place in my heart. It is beautiful, and I think it perfectly resembles our Fire/Grass type Pokemon.