Are you eyeballing him? Believe me, this is one hombre you do not want to mess with.

Technical info: Shot with a Nikon D40 and Nikkor 35mm f/1.8 DX lens, in manual exposure mode. Aperture f/1.8, shutter 1/60 sec, ISO 1600. Post-processing in Aperture 3: auto WB, picked from the white on his vest; curve to bring up exposure, dodged over his face; burned the background; desaturated yellows; added heavy vignetting.

Thoughts for improvement: I tried to get rid of the heavy shadow that runs across his nose and cheek, but couldn't do it in a way that looked natural. That's one thing I'd change. I ultimately opted to keep this one in color, but there were a few B&W versions I tried that weren't bad, so that is another option. And, of course, I wish the picture had a bit less digital noise--I kind of like the texture, but would prefer a bit less.