I like the placement of the bird in the center of the frame. Sharpness looks great. These birds are tough to expose, and I would attempt to tone down the whites on the head and bring out some more detail in the darker areas of the plumage.
I like the setting, look-back pose and details. The whites look good on my monitor but more details in the shadows would make it even better. Maybe a bit more space on the left.
I find this a very striking image with the contrasting colors of the black and white. Good comments from above and many thanks for sharing beautiful capture Doug.