To me this is a truly wonderful action shot. I love the water and how you've frozen it in time; however, we seem to be slipping off to the right on the horizon line. With a minor adjustment this could be a 10 in my book ! :)PJ
"Where there is perhaps a province in which the photograph can tell us nothing more than what we see with our own eyes, there is another in which it proves to us how little our eyes permit us to see." ~Dorothea Lange
Good action shot, I like it.
On the horizon/rotating front, have you come across the Gimp imaging software? Its completely free and rotating images (once you have got your head around all of the different functions) is a breeze.