Since I've started vectoring, I really haven't just worked with screenshots or anything. But I knew once I sat this picture that if I attempted to trace or paint it I'd mutilate it. Besides not having the proper equipment, I've never painted or done anything besides vectoring on photoshop.
So sorry it's not as clean as other wallpapers have been.

Here's the original picture:
http://102.dtiblog.com/s/siketura/file/STEAMBOY_02.jpg