Your title does say it all - what a gorgeous composition - love the silhouetted duck in the foreground and the light touch of pinks in the background. Those shades of blue are fabulous. A very Happy Thanksgiving, Kathy and a definite Fav from here.
It's an amazing sky. One thought might be to clone the upper left bright white corner so it doesn't distract the eye, or to do a pano crop as I think you could lose some of the sky just to the part under the white spot and maintain this great composition and color tones.
