Cool bird with a nice pose. Good perch (although I'd tone down the brighter part of it, as well as the brightest leaf), and the BG works well. I could see a version with more canvas above.
Good observations from Daniel, and would do the tweaks he mentioned. It would be helpful if you would add more details on both the capture phase and the post processing phase, and perhaps some bits about where it was taken and any other interesting tidbits.
Beautiful bird with some cracking colours in it's plumage, also a nice clean background, good HA also. I agree with Daniel in that it could do with a bit more canvas above Stuart