Great to see this mating couple. The polariser would have reduced your shutter speed. The focus appears to be slightly ahead on the water. Most of the times in the contrast based AF systems there are chances that the focus locks on to the waves and ripples in the water. It is also not easy to get the focus fine tuned manually while moving on a motor boat. How many such mating pairs did you sight? Thanks for sharing.

Cheers,
Sabyasachi