Quote Originally Posted by cliveh View Post
I'm not so sure it would be that easy to do with the model moving everything but their foot on a long exposure, or with combination printing. I think it was a false foot/leg with a slightly longer trouser leg flapping around in the wind.
Do you have a spare foot and leg laying around?

What makes the photograph work is that the blur of the upper body is believable. A composite photograph is often not believable; neither are contrivances like a false body part.