Nice face! There are only a few suggestions that I have for this photo. One would be about the border. I like white borders on b&w pictures, nice choice. I would have made it plain white and a little thinner. You really need a plain background for this shot.
You have captured great details in the hair but the face looks almost too smooth. The tongue is not in focus and that is what our eyes are directly drawn to. I have been trying to touch my tongue to my nose while typing this and I can't do it. I feel so inadequate as a human being now.
Overall, great choice for the challenge, very funny picture. Sometimes just a few adjustments like background and the small touches can make a HUDGE difference in your score. So keep that in mind and good luck in future challenges.
this is great in many ways...first of all, it shows how your model really dedicates himself to these challenges, and the sharp hair and smooth face is a good combo here..oh and what kind of lighting did you use?