Very nice shot, Eric! Might I ask what lens/focal length you used?
I love the composition, the look on the bullfrog's face, the way the light falls across the image, and the sheer clarity. It's like we're peeking into the seclusion of Mr. Frog's front porch, catching him watching the world go by from his favorite rocking...rock, as it were. However, at the same time he seems poised, ready to flee at the slightest hint of predation, or perhaps to pounce on some unsuspecting water bug himself!
I love it, the focus is on the eye, the water is rendered superbly as are the surroundings... bravo!