This gentleman did not look terribly happy and was clearly lost in thought. To capture the loneliness and emotion I cropped heavily to give space around the subject without other clutter. I used a thin depth of field by shooting at maximum aperture on the Zeiss 100mm. (f/2.0)
I converted to Sepia and then tweaked the levels of what would have been different colours in the original shot. Finally I added a mild vignette.
Canon EOS 5D Mark II, f/2 @ 100 mm, 1/2000, ISO 100, No Flash