That's tremendous detail in the feathers and very nice pose, head angle, lighting and background. With the perch that extends out the right side of the image I might try a horizontal with less room above, more to the right and a bit more on left.
Lovely detail and colors...I would maybe back off the sharpening a touch (as the details look a tad corse) and do some NR on the BG...I think after the tweaks it will look great