Very sharp with a good exposure. You captured the iridescence nicely. I would have liked the wing on the right to be in better position; it casts a slight shadow on the bird. Also the BG looks a little posterized, probably due to JPEG compression.
Hi Gus. Nice comp and lovely colors. You're getting some good hummers. I can see the posterizing noted by Doug, and ditto his comment about the right wing; but a handsome image nonetheless.