Kiyoaki Kanai

Kiyoaki Kanai is... bizarre. The art is certainly interesting, no arguing that. It is also shocking. I chose the image above because it is by far the tamest example I could find. If you go to his (at least, I think it's a "he") website and bounce around, you'll see what I mean. It's in Japanese, but there's an option at the top to view it in English. Have fun.