Love the pose and eye contact. BG works well too. With regard to sharpness, it is overall excellent, but on my monitor the head feathers look slightly oversharpened.
This is incredible! What a treat to see this species, and such a superb photograph of it. Love the BG, comp., sharpness. The darker areas including the legs, shadow on branch and shadow on neck of bird have a bluish tone. This may indicate an overall colour cast which you may want to correct.
Wow, this is pretty. Lovely subject, great pose, and beautiful bg. The perch adds a lot of interest. Once John mentioned it, I see the blue cast in the shadows as well. Very nice image!!