Oh, she's a pretty girl, a very pretty girl! I love Macaws adn this one is no exception. This is a great shot, I like the fact that you can't see very single little detail in the feathers and the colors and composition is wonderful to me. My only complaint about the shot is the hot spot on the back of the head, just a tad too much light. A 9
IMO outline of bird looks odd b/c of whatever you did to make background so white. Alternatively, background is overexposed and that's what's causing odd outline on bird.
Seems a tad overexposed with chromatic aberration on the edges (the blue outline between the dark and light areas). Also seems a little soft. Composition is good.