I like the way you have created depth in this photo by placing the swans in the foreground, the waterline with the male figure in the middle and the houses in the background. I feel that the horizon needs straigtening ever so slightly though.
Interesting composition having a human there too. I also like the skies and the perspective with other things happening farther, with the water and houses in the background. Having these leveled (roof line's tilted) would improve this image, imho.
there's too much going on in the background. a bigger aperture (or smaller F number, I allways get confused here) would've isolated them more from the back.