Nope, don't know why I chose this, may have been due to Retrogamer magazine's coverage of super punchout in this month's edition. I still have a it of time to make amendments so critique away!
Edit: Added a few more highlights to the shoulder and right side of head and deeper shadow. | 
Weekly Challenge: Impact!
Ummh, I'd try to give it more volume and I'm not so sure about the dither on the backgrond, it's more of a personal preference thought.