Hi Dave, I like the preening pose you managed to capture here. For me, with this particular pose, I agree with your thoughts of cropping some at left. As is the the comp would have been fine for a standard portarit with the bird looking towards our left. With experience you will learn to recognize times when taking verticals would be a better option. If you noticed that this individual assumed this pose often, then this would have been one of those times to turn the camera over IMO as I do find the bird looks cramped in the frame.
Techs look good, and I like the small rock perch. I agree a catchlight would ahve been nice.