It's kind of petty but the 'X' on the tree in the background takes away from the overall appearence of the moment - it's kind of distracting. Unless, that's the 'spot'!?!??!?!
I think that the moment was frozen so fast that the action has almost all but been removed from this photo, a little more motion blur would have been nice for this challenge.
very nice photo. I really like that the horizon is not straight. It enhances the dizzy feeling that both of them are going to feel when they get done. A tighter crop may have enhanced a bit because the X on the tree in the left background is a tad distracting.