A little tight up top Thijs......but the lighting, comp, and pose are super. If you are OK with such things you could extend the canvas a touch byt overall another beauty!
Good looking subject, nice pose and details. Also like the color and great BG. I might try croping a tiny slice of top to cut the perch and maybe cloning the cut off stems/leaves/ whatever at bottom of the perch. But this is very nicely done.