The background is quite noisy and bright. If it was a lot darker and more blurred then the main subject would stand out a lot more. The bird is also almost dead centre in the image and given you also have a "feature" in the water on the left hand side, the composition is is not that well balanced. Opening up more empty space on the right hand side during the cropping stage for the subject to fly into would have been better
Nice stopped motion :-) Looks like a misty morning flight. Crop feels a little off to me but I'm not sure why because you've got some nice diagonals going. Maybe it's just because he's close to but not exactly centered. Anyway, nice overall peaceful mood to this.