Great, great moment, it would've been great if the Hawk were facing the edge in stead of the rocks, but nothing you could do about that, so about what you could do, I think everything is just too perfect! Those feathers in the wind are such a plus, such a plus. Congrats!
What a moment! nice action shot!
To improve the overall image, you could clone out the feather that is closest to the tail and leave the 3 others in place. I also think that darkening the rocks will focus more attention to the bird.