Very nice detail and sharpess, especially given the ligt conditions.
There's one aspect, though, in this image that makes it more than outstanding.
It s the fact that this bird never rests. I find it impossible to get a glipse of
a kinglet resting. Getting a photo of such an erratic mover is really a big deal IMHO.
Not easy to find one that is not moving, seeing the crown adds to it. I might remove the lower catchlight and wish there were no shadows on the plumage.
Great shot here. I like the comp detail and exposure. Pity about the shadow over the head. What is the red spot on the back of the head? Well done here
I like the shadows on the bird as this is typically how I see this species...just not sitting still :)
I might blur the background a bit. I don't mind OOF pieces of habitat, but perhaps blurring the ones on the left side of the image might make them a bit less obvious?
Wow! Nice detail in your photo of this fast little bird. I agree with Jim about blurring the background a bit, especially on the left. It takes a bit of attention from this sweet bird.