If you crop it I think it would lose some of the fish eye effect, which is what I think makes this photo work so well considering the subject is dead center.
I personally love this photo, and certainly feel the BW was a good choice. Curious how this would look with a little film grain added in to give it that old photo feel.
Besides, i have a soft spot for fish eye stuff. (one of these days I will get one of those)
Nikon D200 w/ battery grip
Feisol CM-1471 Monopod
Kenko Extension Tubes