Nice close-up - lucky to have gotten so close. Sharp, and I like the subdued lighting conditions. If this is cropped I'd be tempted to add back a bit of the body below, and I would would fiddle with the saturation a bit too as the colours seem a bit dull. Did you work on the eye to our right?
I also like the pose, sharpness and color. I fiddled a bit as Daniel suggested, and by increasing both the exposure and the contrast just a tad it does give it a bit more punchiness. Great job on getting close enough for a portrait.