I like the relaxed pose and head angle. The bird looks a bit soft and I would run NR on the BG. If this is a setup, a smaller perch might have been better.
Arsdel:
I agree with Fabs and Axel. Just to expand a bit on the perch. In a perfect world, I like a perch which is scaled to the bird. Hummers are so fine, and delicate, that a big perch tends to overwhelm them. An eagle can tolerate a pretty substantial perch!
...and any perch (big or small) that is broken off in such a fashion really takes away from any image, however successful the rest of the image may be. Hopefully you can find a worthy replacement twig and entice this beautiful subject onto it :-)