good execution of technique! :thumbsup: :thumbsup:
if you're going to try a shot like that again, consider using a tripod to reduce any camera shake, and go for subjects that are slower-moving or choose a different moment, like just before the performer makes the leap, that way your subject would be more in focus without losing any detail of the image. actually that would be best because you'd see the concentration on the face, and not his/ her back. that would be a more interesting story to tell. ; )