First of all, nice capture of this excellent bird! For me, in New Jersey, it is rare to see them this much in the open.
I find the extra space on the top a little distracting especially relative to the the space below the bird. To me,it would look better with 30-40% less lue on top. Also, the body feathers and legs appear to be oversharpened a bit (or it could just be a jpeg resize thing).