Wellllllll......I do like art sharring sites in moderation, more to collect favoritesthan anything else
Deviantart is the biggest, I have an account and some favorites there and I joined sheezyart today and it is much smaller, has less options and I cant figure out how to upload!!!!!!!!
I don't know I think maybe da has more stuff and whatnot but it is nice to see other people's stuff. da does seem to have more styles maybe? note: safest way to search is with a filter for the mature stuff and to go through the favorites of your favorites : [

Flickr is safe but not much artwork, all photography pretty much.
tried GFX but it was way to dark...........