I think the focus on foreground would have helped this photo immensely. And a better inclusion of the branch on the top of the shot...or maybe that's just fine as it is...
Very nice use of brightness in the black and white photo here. It feels a little out of focus though and the frame is so crowded its hard to tell what is the key subject. Good job overal though!
The shot is maybe a bit too busy for 640x, although printed bigger, I think it would be really cool. Other than the title, though, I'm not sure it has much to do with the challenge topic.
I think this had great potential. The steam coming off the water looks amazing and the sheer number of ducks is really good too. I think you could have cropped off the top and bottom to make it look as though the ducks went on forever. Also I wish it were a bit sharper. Those ducks in the foreground, especially, look just too out of focus for me.