I couldn't see the EXIF data on this image, but it looks to me as if there was quite a large aperture used resulting in a very narrow depth-of-field. His left eye (nearest to us) is in focus, but the other eye (and his hand) is not.
I think in an image like this, the eyes need to be very sharp.
IMO wide apertures are two edged swords...
While they allow available light shooting; the DOF is often extremely narrow and sometimes even with increased ISO and Image Stabilization, shutter speeds become too slow to effectively accomplish our shots.
Again, IMO, a reasonable solution is effectively bounced flash.
The light from a creatively used flash is often superior to available light. As Neil van Niekirk writes in his Introduction to Flash Techniques ( http://neilvn.com/tangents/flash-pho...hy-techniques/ ),
"As photographers we’re always looking for perfect light. And yet, the quality of available light isn’t always ideal. It is rarely perfect.
But I feel that in using flash wisely, I’m able to enhance or over-ride the available light. With careful use of flash, I am more in control of light, and hence the way my photos will look – than if I had just accepted the existing ambient light.
Instead of waiting for perfect light, I use what I have and add flash to make the best of the situation."
I know that lots of members shy away from flash. But, perhaps this is because they equate all flash with the horrible flat look of straight-on, unmodified flash, especially (ugh!) that from the built-in flash of a camera!