Focus is on the wrong part of the animal. Should have focused on the face and not the ... tail. Basically, my eye keeps getting drawn to the rear end which is definitely not the focus of the picture. As far as style goes...I would have preferred a tigheter crop/rotation emphasizing the diagonal line they make.
The light is nice, and the ducks are ducky, but there is not much else to say about it... maybe a more unusual composition would have improved this rather common subject
Nice composition, pose, and reflection, but unfortunately not enough DOF, as neither head is in focus. If you have focus point selection, try center point only on head, lock and reframe or crop for composition.