I have seen these around the pond but they haven't landed anywhere to get a shot of them! Nice image, I agree with Randy that the abdomen is the sharpest although I find the eyes often have this look of being soft even whey you can see that the individual facets of the eye show some of their structure in your image.
A fine shot Allen the right eye is a little soft,that is because it is so big! I am not sure how close you were but maybe a little more distance between you and the subject would cure the DOF.