Your bird is sharp, well exposed, nice position. The BK is very nice.
I like the perch. For me it is right on the verge of overpowering the bird, but I think its good. I did some quick crops but prefer yours. I think for some odd reason, the part I found most distracting are the two spikes angling off the main stem at the bottom of the frame. If your ethics allow, I might try a version with those cloned out, and see what you think.
In regards to the perch, I find it perfect in size shape and form...and also very appropriate especially that goldfinches absolutely adore thistle and use it to line their nests when seeding. Great comp and pose.
A few weeks ago I commented on one of your other goldfinch images that I thought is was too light but then I thought it was only me as no one else mentioned it. Well, I'm finding the same thing here (my monitor is calibrated and I can clearly see every shade of the calibration strip below). I adjusted the midtones slider in "Levels" to "darken" the image and feel this is a more pleasing tone.
Very nice image good HA and eye, like the perch very much, very good colors feel.
My Mac is very bright and I don't find this image too bright as Daniel said. The center plumage is
on the brighter side but not bad IMO. It might be a matter of color rather than brightness.
Anyway very nice image.
I think this is lovely, the perch is perfect and small birds on good perches are so hard to come by. I do prefer the colors in the repost, just more punch. A very nice image all around.
Aidan, cool perch, and a super pose from the Goldfinch. Overall, this is nice and sharp too. I feel Dan's repost with the midtone adjustments works well.