Lovely clean composition, fine detail is there, posture and head angle is very good I think, I can see noise in the shot though, maybe from a bit of over sharpening
It does look a tad bit oversharpened. The breast feathers just don't look right. I do like the head position with respect to both the body and the camera though.
Looks good overall with good colours and nice perch/BG combo, but also looks like a b ig crop perhaps? I'd add back some canvas either way. I also think some fill-flash would have helped here.