CC welcome and appreciated.
right now i am vewy sweepy.
(http://www.2dadventure.com/ags/bruce_lee1.png)
VERY nice! It looks a lot like him and the shadows are great... What I don't like is the colors. I mean, he is too yellow. Also, another thing I didn't like was his left hand. I don't know, it doesn't look right. Maybe it's because you can tell if he has a wrist.
I made some changes in the arm. It still doesn't look good but I think it has some improvement:
(http://www.2dadventure.com/ags/bruce_leehand.png)
You need to put a crease shadow at his elbow... that'll make it alot more 3D.
Otherwise, good colour choices and diligent shading. Very close to looking like the man himself.