Nice bird and HA. You might want to try to get a bit more detail in the black breast. I find that there is too much empty space with such a small bird. The perch is also rather uninteresting. I would crop down a bit further, and make it more tight.
Image quality looks a bit suspect; how large a crop is this? Cropping off the left to just before the branch ends would improve the COMP by getting the bird right on the rule of thirds spot. EXP good.
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