This is a very nice shot! The lighting is really sweet, as is the composition, sharpness, and details. My few small suggestions are to add a little more contrast into the bird, have the bird looking slightly more toward the camera, and leave a little more space on the left side of the frame for the bird to look into. The background is confusing me, I can’t decide whether I like it or not. It’s not that I don’t like the green, it’s because most of it is that light green, but then the bottom is much darker. What I’d suggest is for you to pick which shade of green you like better. If you like the dark green better, I’d suggest darkening down the light green area a decent amount. If you like the light green, maybe bring up the shadows a decent amount in the dark section.
It’s a personal preference, to be honest. For me, I don’t mind it, but I’m sure others will.