Camera Work/Technical: Everything technical about this photograph is dead on, in my opinion. Great focus that yielded tremendous detail (right down to the finger prints), great WB and exposure control and very nice depth of field use.
Lighting: Also very nice. Again, everything technical about this image is near flawless.
Composition/Content: This may be what hurt the score. While you have produced a very nice image from a technical standpoint, the subject struggles to hold the viewer's interest for very long. I'd also like to see the rest of that top finger included in the frame. It really pulls the eye up and out of the frame, and away from the main subject.
My Opinion: You met the challenge perfectly, and you did it with an image that was near flawless technically. With a subject that provided a bit more interest, this one would have scored a great deal higher.
no!! but good photo, nice sharp focus, maybe could help if you could've gotten all fingers in focus and solid background, but nice composition and good pic overall