I intentionally and manually focussed on the frog's right eye, and I particularly like the way the areas where objects pierce the surface of the water get blurred. Sort of an extended bokeh effect. 8-)
This shot actually was fairly easy, as Frogs don't move unpredictably. Distance was approx. 2m, or 7ft. I'm still struggling with shots of birds of prey in flight, but that's a whole different story which I'll post later on.