Dennis the image looks a bit bright in my monitor (not hot, of course) and slightliy flat. I think that some additional processing job to increase the contrast and to tone down the BG just a bit would made this image to work even better. Sharpness is fantastic and I am not sure about the composition. At first glance it seems that you left too much room at the bottom but now I think that it is a good idea to give space for the "virtual" legs of the bird ;-)
I agree with Juan's comment, although the composition IMO could've been better, to me the bird is so deep that I wouldn't have missed the virtual leg space at the bottom and with that amazing BG, a bit more room on top would've been nice, still, lovely image. Congratulaitons.