Hmm.. maybe we need to update the contest announcement with more details. I'll try to answer all art related questions regarding this contest, but if I don't get to your question, just PM me.
@Shakkaho, 72 dpi or pixels per inch
@MaxsAnjo, nope.. the plan is that these artworks will be randomly cycled through and uploaded among all splash screens.
@Valheita, it wouldn't be fair otherwise. You should start to practice singing though just in case.
@Tasn Zheng, and maybe also practice dancing.
@[ Person Man ], it can done in any style.
@Kaitan Guo, it could be pre-existing art. Just make sure that it's the right size.
@Kats Kokeshi Doll, I suppose it'll be okay if it's a joint entry, however you'll only recieve 1 prize for winning. Also, it doesn't need to be from any boss area. As long as it's something relating to zOMG... the background could be about anything.
@gataka, we'll need to get back to you on that rule, but it should be alright. It's not like we handing out real money here.
@Nurannoniel, yes, you could scan traditional artwork and touch it up. Also, you don't need to follow the art-style found in the game. And we'll randomly upload them into various splash pages.