EDIT: So are we in agreement that the shadow is... wrong???
Interestingly enough, I naturally see it as clockwise.
Lex posted this like 3-4 months ago and I did a hardcore/nerd analysis in his comments section. I basically opened the .gif in Adobe Imageready and determined for a variety of reasons that in fact the figure had the factual appearance of rotating CCW.
To summarize my comments:
There is a thin line that appears on the upper leg when the left leg reaches about the 2 o'clock position (from a CCW perspective). This line does not occur for the mirrored CW perspective.
Further, the shadows that appear in the image could only be created by a light source behind the figure. Accordingly, when the shadow of the extended foot appears, that leg is pointed AWAY from the viewer. In the case of the video and the .gif provided, CCW is the correct direction.