I like how the lighting looks on the membrane of the wings, they are slightly see through and looks really sick. The clouds are really sick too, especially with the color they have.

Looks like a shot from "The Reign of Fire" (Great movie BTF) Nicely done. One thing that bothers me is the lack of anti-alising on the most important part of the artwork, I don't if this is art choice or is it an issue with picture processing but the pixelation sticks out.