It's a nice shot. If you were going to use this for something other than a personal snapshot, you'd probably want to increase the contrast to get his face to stand out more in the image. On the focus issue, it's kind of a tough decision on the shutter speed versus depth of field, but you might have been able to get by with a lower shutter speed (say 1/250 or 1/125) for a larger f-stop and greater focus latitude if he was stationary. I suspect you probably needed the faster shutter speed, as he doesn't look like he would be holding still very long in that position. Using flash might have helped all issues some. Looking at the composition, it would probably have been preferable to position his face at a "rule of thirds" intersection in the frame if possible, but the shot as taken looks fine.