Nice capture...maybe you can do something about the top part of the bird that are overexposed a little?
If you use LR you could decrease the highlights a bit...would be a printable shot.
Exposure looks fine but the whites will blow out if viewed on a monitor with the brightness set a little high - it may pay to leave a bit of insurance by reducing the white slightly. My main concern is that there seems to be a little camera movement that has synchronised with the movement of the nearest wing. You may need to increase the shutter speed a bit. It maybe focus but my pick is movement.
Do you have Focus Magic? Get the trial if not and work on the softness as well as blownout whites.
I agree, Otavio, it looks like you had a bit of camera shake going on. Nice position on the bird, whites look just before blowing on my monitor. But as said giving yourself a bit of room if possible wouldn't hurt. That is a seriously blue sky.
Good capture Otavio!