Hi Colin,
I love the pose. Image is nice and sharp.
You were on the wrong side of the tern unfortunately and it is too bad his face is in shadow.
I would clean up the RLC and consider cloning out the bit of sand along LH edge of frame and on the RH side BG,
Gail
Overall a good image, like the outstretched neck and open mouth, though it's a shame the head and back is in shadow.
To me a vertical crop might work here.