Game Graphics Design

I'm looking for a graphics artist that can work with me iteratively to create graphics for characters, spells, and backgrounds for an IOS game I'm developing (or if you already have something that you think is relevant I am also buying assets). I need to be able to talk to this person through some sort of video medium so I can review their artwork. The project will most likely consist of ~100 different graphics then possible animation frames as well. Here's a breakdown of the image list: 20 different enemies with 5 bosses) 40 different spells (the type of spells haven't been decided exactly but would include lightning, fireballs, iceballs, etc..) 1 orb image with different hues (concept of different elements, maybe total of 10 hues) 1 Possible custom font 7 different background images ~10-20 icons (icons for buttons and other game elements) As of now the devices this is going to be run on will be iPhone 4 and up. These numbers are all variable and can change at any time depending on the artists input. If the artist has prior experience with iPhone graphics that would be preferred as there are different resolutions I need the graphics made for. I have wireframes of the entire application and a demo. I've also attached the current game screen so you can get a feel for the game. It would be easier for me to talk over some sort of video medium (google hangouts, skype, etc..) so if you've got experience and want to take a shot at this let me know as soon as possible!