http://www.deviantart.com/deviation/12010966/
i think it's better if you hand draw it. if you're not THAT good at drawing (like me) and still want to use a photo, try desaturating or converting to B/W and then painting/editing with new colour, maybe on grayscale it's simpler to add some elements like airships and high density atmosphere shields...
and now i'm getting ideas too LOL
post your work later =D