Monster images for iPhone RPG!!!

I'm making a role-playing game for the iPhone! I need a graphic designer competent in created 2-D bitmap graphics for the game, including but not limited to non-animated monsters, animated characters, world tile sets, and dungeon tile sets. The dimensions for images are 32x32 (or factors of 32 such as 64x32, 128x64, etc) and must include alpha. I have another freelance designer currently working with this game, so I can provide examples of what stuff should go with. For this project I'd like you to make 5 bitmap non-animated monster sprites (32x32, alpha included) with at least 1 recolour each. So I'd like: 5 x (normal monster sprite + recoloured monster sprite + optional recolours). I will provide additional specifications when I accept your bid. If I accept your bid you'll have to sign and return an NDA before starting. I am a college student, so this is going to be on a college student's budget (not too much). If you're serious about bidding on this project, please show me your portfolio, and also include "***retinal display***" in your bid description.