Or better still, rearrange the galleries by subject matter entirely. Art, incidentally, is not always "tasteful". In fact, "tasteful" sounds like a recipe for bad, insipid art. Art can be quite brutal. The distinction between art and pornography is that the latter is intended to provoke physical arousal and only that. Art can share the same subject matter as pornography, but treating it in a different way. I would cite Allen Jones as an example.