Raúl, I'd also clone the branch so it doesn't touch the edge, what I see is that the focus is on the bird's left wing, so you might want to give the head a little more USM. Still, very nice capture with great light, detail and BG. Congratulatinos!
Impressive framing considering it is full-frame! Tough exposure with resulting deep black shadow on the underwings (especially far wing). As posted the image could stand more sharpening. If your concern is a resulting too short stick you could alternatively add some canvas instead.