Great action Al. I think that a litle bit of more contrast/saturation would be great on this image. Not sure about the shadow but I think that it would be great if the shadow were not cliped :-)
This is nice and sharp, and he's about to get all messed up in that water. Hope you got one of him touching down. The shadow is actually a nuisance, because if you include more of it, it would push the heron more central, thus not the ideal comp. Just my thoughts Alfred.