danielshunter
You're in trouble if you think people will enjoy work for free doing original characters in many poses as necessary for at least an indie game.
First, you need to be clear, how the earn will be shared?
Second, if you're thinking in don't share the earns, how you'll pay the artist?
Third, if you're looking for some backgrounds, random characters, but not exclusive ones, give a chance to sites like graphicriver.net or deviantart.com or CGHub.com, they are amazing places to meet artists and arts.