This is a really nice shot. I'd love to see a little less sky and more of the trail. To my mind the trail is more part of the image, as your subject is actually on it, so the trail deserves more emphasis. Having said that, I can see that you were trying section the vertical space in thirds (as well as put your subject on a "thirds cross") and my suggestion might upset the composition. Without seeing it both ways I guess I can't be sure that my suggestion would work so I'll just say...Well done.