Jim, very nice colors, both on the subject and the background. I like the wing position, and the head angle. I suppose it would be difficult to get a sharp beak with any other head angle! Even though the eye is in the center of the frame, the composition feels nicely balanced to me. I agree that more sharpness on the tail would be a plus, but I really like the image.
Hi Jim, good use of flash, and you have brought out the green iridescence very well. Lovely hovering pose with the raised wings, and I like the green BG too.