Sandpiper

As my son and I swam in the Atlantic before sunset at Cocoa Beach, Florida, the sandpipers ran up and down the beach to look for food. I was able to capture many profile pictures of sandpipers, but I like this one best, since the little bird was not shy and seemed to look me in the eye.

I like the reflections of the bird in the wet send (the reflection above it is from an out-of-view bird) and how the stones in the FG and BG are OOF. This picture is cropped quite a bit on the right and top. What might you do to improve the crop and tone of the picture?

Pentax K-5 with DA 55-300 at 300mm, 1/750 sec, f/5.8, iso 200