I did this a while ago, but I had a ton of fun painting it. It's a study of a painting by Frank Duveneck. Studies are great because you learn a lot by doing them, and just like in life, no tracing, no color picking, you gotta train your brain to understand what you see. I managed to knock it out in 2 hours, I wish I could do that for all my pieces!

Photoshop CS5