yay I've done the shading and all! you can just color the 'COLOR-ME' layer with "Lock Alpha" checked (so you never have to worry about coloring outside the lines!). if you want to add layers or do a BG, just uncheck "Lock Alpha".
basic rules:
don't erase my sig.
if using outside CS, link back to my deviantart where possible.
errr... have fun!?