My father was one of the British troops who landed on Sword Beach in the first wave on D Day, I was lucky to have been shown the beach by him when I was a teenager while on holiday in France.
I think you've caught this very well indeed, and it's also a good advert for the square format. As a pure aside from the shot, I'm wondering how these are secured in place so that the sea doesn't wash away the sand round about it?