I noticed that there weren't any sprites of the Mega Evolutions as they are in the game, flying. Most of them are based on the promotional art, while they really shine when in the air.
The Charizard sprite is there for several reasons. First of all, as a reference to keep my eye on when spriting the other two. And second, because Charizard looks way cooler flying. The head is basically the same as the Heartgold/Soulsilver head, but updated for accuracy.
Charizard belongs to Nintendo, Sprites by
Feel free to use, just give credit.