I added "suggestion lines" to the GIF to help people see the spin in a different direction. Hint: It helps to pay attention to the area where her legs meet.
Clockwise Original Counterclockwise

So, which direction is "correct"?

There's a little giveaway in frame 13 of the original:

If you look closely, you can see a rendering artifact where the vertical leg clearly covers the lifted one. Therefore, in the original specification, the dancer's left leg was raised, which means that she was intended to be spinning counter-clockwise.

Wei-Hwa Huang
October 14th, 2007