The lighting in this is a little harsh, and the colors are off. It looks like you may have shot it with a very high ISO and it might be color noise that is throwing it off. It looks like it was pretty sunny outside though, so you probably don't need such high ISO for that kind of shot (if you were using manual settings)
I like the low angle approach to the shot most duck shots are from above ... the exposure seems a bit bright and the colors appear off ... but, nice change up overall.
Beautiful colors and the water is so clear! IMHO, I do think you have some blown highlights ont he ducks (but it also looks like it was a difficult lighting situation - midday sun). Nice DOF, but some of it is lost in the glare. Still a very pretty shot. 6
Great perspective. You were certainly right down there with this little family, weren't you? You don't see many duck shots from this angle. I really like it.