I think that if you had more background motion this would have worked better. The panning effect might have been more visible and the score would have been higher.
I dont know whether or not you cropped this picture, but the object on the top is very distracting and I think that had you cropped it with more space on the bottom, following the rule of thirds of course, you would have gotten more of an appealing photo, all given that this was cropped. Also, I feel that the border does not really work for this photo, I think the color is somewhat distracting. Overall, your subject is definitely in focus, very good, and I really think the pose is quite amusing
This doesn't work for me as an example of panning because it just looks like you used a shallow DOF to blur the background. Would be better if there was a little more apparent motion in the subject.