I like the tilted down pose with the open beak. The BG is a nice complimentary color and nice and smooth. Perhaps toning down the light area under its tail would give better impact?
This is really super. Can't see a single thing that could be improved except maybe a very slight cropping off the bottom to remove the two small leaf parts.
I'm taken by how much this bird looks like a miniature jay! Makes sense when you consider that the titmice (family Paridae) are considered to be most closely related to the crows which of course includes jays.
Oh Laura I love this image and the awesome alert pose you captured here. Great composition and detail and the open beak is a wonderful bonus. Great work and many thanks for sharing.