ohhh boy. "unappealing expression". Ahhh! Like he was supposed to look suave!
Annnyhow. Strange comments aside. This is a great photo. I love expressions and stories... 2 of the biggest things that draw me to a photo and you have both here. No comments from you! I kinda want to know what this guy was doing! lol.
Technically I'd probably like to see more on the left side where his hand is chopped. The bw background was not noticable at first but the more I look at it the line is very obvious, perhaps you could have used a more blurry edge or not done a total desat... maybe 70 or 50 percent?
Great character, and a well-taken image. I don't like the post-process work. The halo on the left side of his hat is particularly annoying. Not sure why you wanted the d-sat either.