I like the overall comp: for my personal tastes would have the bird a little higher in the frame, cropping a little from the top. Overall the bg is great. Little bit of problem with ?PS work on the branch in front of the bird. Pity about some blown highlights on the birds head and the branch. Overall nice portrait of the little bird.
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Nice pose, great BG. Agree with Dave about taking some off the top or leaving more on the bottom, or both.
It looks like you tried to composite in that branch on the left, or clone out another branch Have a close look and do some patching, or redo. It looks like some motion blur, maybe combined with not perfect focus. Was focus on that area on the left that you worked on?