Gorgeous bird to have in your garden. Great pose. But, the contrast is a little high in the processing for me: whites too white and blacks too black. I'd love to see it toned down a little to reveal a little more subtlety in those areas (the bird is dramatic enough to still look good).
I wouldn't mind a garden visitor like this. :) I like the pose and perch. The light looks very harsh and I would decrease the contrast a bit. If you could arrange the perch in a way that there is more distance between subject and BG, the BG would look less busy, which would be beneficial. Could you post some techs?
Unfortunately the light appears very harsh and there seems to be some loss in feather detail perhaps for that same reason? I do like your composition and your dedication is admirable.
Great bird - agree contrast a bit high and ?slight overexposure - flank and perch look a bit hot but I am on an uncalibrated monitor at work. Not sure what your aperture was - possible opening up a bit would solve the backgroound issue. If wide-open would need to increase background to perch distance. Fill flash a good option to try and tame the lighting contrast. More details would be helpful.
Very nice bird, I agree with previous comments. There is also something with the composition but I have a hard time to figure it out. The tails form a vertical straight line which continues with the 2 gum nuts, tough to say...
I agree with Axels suggestions. I think if you could get this guy in some lower-angle light you could really bring out the details in the blacks. Another alternative would be to shoot him on a bright overcast day with a touch of fill flash.