Nice image. Love the positioning and the close framing of the subject. The skipper seems like it has a curious look and the antennae remind me of raised eyebrows.
For a critique I would mask out the dark left corner, it is a little distracting. Also I know the DOF (depth of field) is very narrow so I would run a very mild USM (unsharp mask) selectively to the eyes and face. If you need more details I can help.