Avatar Aang for the win!
It's not a horribly original idea, everyone and their cousin is drawing Aang in his uber Avatar mode when he's kicking Osai's ass at the end of the series finale, but I really wanted to do it too. And here it is. And it is gorgeous.
Wow I love this picture.
Drawn, inked, and colored all in Adobe Photoshop. I wanted to use Corel Painter for the background, but it wasn't working right, so that was done in Photoshop too. And it totally took ten minutes for the program to render the crazy smudging I did to the background, during which I got a taco.
Also, you can check out the original lineart