One of the best semi-realistic Charizards I've seen in a while, I love the pebbling on his shoulders and horns! The sunken in portions beneath his eyes make him look much more reptilian, and that tail! The burnt appearance you gave it is amazing!
I agree with Xexros! It makes him look like molten lava! Like the temperature of his body is so intense that he's actually bubbling and boiling! The wings are beautiful too! Gosh, I just love the way you interpret Poke'mon! I think that's what makes fanart awesome; seeing how other look at the same subject!