What a handsome bird and great alert pose! I do find the bird too tight in the frame though, and think that it's a bit out of focus. As if perhaps focal point was more towards the rear of the bird. How much of a crop is this? If you were this close you may have needed to go for a smaller aperture than 7.1. I'm also seeing a strange yellow glow/halo esp around the crest of the bird--but also on feet and tail. Can you write something about your post-processing?
Beautiful bird with a nice perky pose and it looks like it may have been on a nice perch. Cropped much too tight, and the IQ/lack of contrast makes it look like it was photographed through a (dirty) window.