I like the balancing pose, perch and BG. The light looks a bit harsh and I would try to tone down the bird's side and the leaves. I might put the bird a bit higher in the frame, run NR on the BG and remove the magenta cast.
P.S.: I fixed the image link for you, please only use "http://farm4.static.flickr.com/3321/3635138420_c387e63bc2_o.jpg" without quotation marks, not the html code. Otherwise the forum software can't create a thumbnail.
Techs have been covered well. The noise reduction is needed (zoom in and look at artifacts in the background), Topaz is getting a lot of press around here as a good NR application. Regarding Fab's comments. If the subject were underexposed (histogram well to the left) when adjusting darks towards the right it creates noise. Thats why we like to have the histogram towards the right, less noise and 75% of the tonality is within the first two stops on the right. With ISO 200, one would not expect much noise, so we are theorizing you might have adjusted the exposure right, generating more noise.
I had to work on exposure in the PP, I think because of that there is noise. Would take care to keep the histogram more to the right.Thanks all for the comments.