It always amazes me how tiny their feet are! Perch is large in scale, but the dark color plays well with the bird, sharp. Some loss of detail on the neck whites, always a challenge on black(very dark green) and white birds.
I might try to soften the orange leaf a bit more, perhaps hit it with the clone stamp of the green background a few times.
I don't know if you applied noise reduction to the actual bird itself, or if the IQ is just not there, but it looks like you're lacking most of the fine detail on the bird. A better head angle rather than the 'looking away' angle would have improved this image greatly. I do however, like the colors and the perch.
Very nice pose. The size of the image is a little small. You can post up yo 1024 pixels wide. Good job getting parallel. If mine, I'd have put the bird to right of the frame....more space to look into. the right side is not adding much and has the distracting reddish brown patch.