You have a very nice image here. The BG is very clean and pleasant as well as the open beak and colors. I wish the bird was a hair to the right but a fine image as presented.
Great picture. Nice colors, exposure and details. Two years in row I have a glimpse of this species resulting in poor shots, so as you can understand I am very jealous.
I agree with the previous comments. To me it looks like you need more sharpening. I downloaded and tried some small jpg sharpening on it and it looked sharper.
Beautiful. Great background and pose. I've not seen one of these in person, so I might be totally off base, but I'd like to see the blue just a little richer.