The shuttle and fire are fantastic, but the simple dot-stars and background looks a bit out of place, and the way the dark pixels on the fin edges are lighted up completely for a frame makes it look like they're jerking up and down. Incredible intricacies on the shuttle shading and markings, though.
Thank you very much for your cc, Shadowdrake.
I think you're right for the background, I should have put a more detailed pattern, it doesn't makes sence
with the main art.