Nice shooting and light angle. Enough to the side that the shadows round out the form. The head angle allowed the lighting to work well also. I might try to tone down the brightest spots in the waves behind the bird, mainly the blob above his head.
James, I really like the colors of the water and the wave action in the BG. I love the pose and comp. I might tone down the one round blob of water if it were mine. But it is still a very lovely shot that I would love to have.
Nice incoming pose (and good choice of vertical comp), and I like the visible foot. I too would tame the whitish areas above the head. It may be an illusion, but the area below the feet makes it look like the image may need a bit of CCW rotation.