Ok, people, thanks for pointing the color count issue. I have fixed it, now it's 7 colors + alpha, and it has nicer colors than before, in my humble opinion!
Nice! This looks like it comes straight out from a game. I don't see where this doesn't qualify for the challenge though, it looks fine to me.
@failureboy: Why doesn't this qualify for the challenge? Maybe I've missed something from the rules. Please tell me what's wrong.