Nice pose and BG. I agree on the noisy BG and it looks as if there are some clone marks in the upper left and on the right side. I might crop a bit off the top.
Even the common House Sparrow, that has earnrd a bad reputation in some quarters, can be quite appealing when viewed up close, as in this composition. I also like the gradient in the BG but it does require some NR.
Nicely done, Aflues (I know your handle from a few places)... I really like the background (minus the noise - there's a lot). Having the bird a little higher in the frame would add to this image.