SheezyArt is smaller and is trying to gear towards putting newer artists in the spotlight.

Which is hard, and their automated frontpage system isn't perfect (There are numourous complaints of the low quality of some pieces that get there), but it's a hell of a lot easier to get noticed.

I've had a SheezyArt account for a year or so now, but I'm not going to post it because I don't use it very often and what's already up there is old and crappy.