The circle is Quadrastate, for those who are curious. There's some of their Strawberry Panic stuff on here, and a good chunk of their Final Fantasy set. miragio made a pool of that one but it's incomplete, the pool that is. Most of the set is uploaded. Should I go ahead and tag all the stuff I recognize with the circle name?
Unless you have information on which artist in the circle did each pic, the circle name is a sufficient artist tag, and much better than no tag, since there's otherwise now way to link the works.