Nice capture. Generally nothing wrong with it.
MHO :
1. Right side is a bit blown. I think it might be the increase in highlight and contrast when pp in b/w that caused this as the colored version does not have as much of a problem. No big deal for me actually. Perhaps you can dodge the burn the areas you want instead.
2. Too much of face in shadow, resulting in a more 'moody' look. This is a smiling kid shot after all. Light coming in at 45deg to the face might be better. Else use a fill flash (which can be bounced from the wall behind or to the left) or a reflector on the left.