Very nice finding the couple together and lucky they fell in almost the same plane for nice DOF. I'd crop off the top or bottom, just to get them off the vertical center. Another round of sharpening in the faces will not hurt.
You have nice lighting on the ducks here John. The male has a "perfect" pose but I would wish for a slight head turn on the female. As the others mentioned, good job on getting both in focus. Your colors are good, especially on the male. These colorful birds are my favorite species of duck. I would suggest a tighter frame, cropping in from the bottom and right.