Unfortunately, while ducks are beautiful subjects (in my opinion), they tend to ruin those images where they are in their most natural environment, since the nature gave them the ability to blend in. Good for ducks, bad for the photos of ducks.
Oh, my god: this is a beautiful picture. I'd like to have it sitting on a table, by my fireplace...only, I don't have a fireplace; but, damn it, this photograph makes me want to get one! Amazing.
6 - Odd, but good idea. Criticism; more definition if possible on the ducks, or at least one, as seems to be in the rock fore right. Different 'composition' perhaps, with more space at the top. Not sure on the frame.