I used to play around with actual photos alot. So even though I may suck at making web graphics I consider myself a VERY good photo toucher-upper (Rofl, or whatever they're called!). I used to take pictures of myself and my friends, edit out all of our acne, if any, blemishes, ect, change our eye colors to be at their brightest and the pictures would come out amazing... So Here is a link to my tutorial that I made for my site if anyone is interested.
Eye Changin Tutorial
And here is a preview of what exactly it does..
BEFORE:

AFTER: