Lovely flight pose and sky, but it is a bit underexposed, try bringing it up in conversion and see if it looks better. Go as far right as you can without blowing the white on the wings.
I like the comp, sharpness, and all the detail in the near wing. The clouds add interest to a dramatic background. My only suggestion is to brighten it up overall - as Fabs noted above. Well done.
Agree, tihs is just one terrific shot! Great pose, body/wings/head angle are all perfect IMO, comp looks very nice and detail is great too. Congratulaitons!