Fine duck pic. Feathers make good pics. Beautiful, well focused . A little overexposed on the neck. My experience with birds with white on them is that it helps to reduce exposure by at least -1 stop, or the white gets washed completely out.
The tones are tough on this one. I'm afaid this one lets me down a bit. I think it's the medium crop. Either really get it in there or zoom it back for some context. 4