I've been reading 100 Bullets recently and I've greatly enjoyed it, but a large part of that comes from Mr. Risso. I love this guy's style, it's so gritty and disgusting at times, yet in a way that attracts you to whatever he's drawn. It's unsettling and disturbing at times, other moments grounded and able to covey emotion with ease. That site up there is his website, filled with some of his work. The guy just blows my mind.
He also loves messing with eyes and teeth covered by darkness, thus the comment up there (Third volume had a guy giving such a disgusting smile).