Underwater photography is a difficult art. You have to manage all of the technical elements of photography under more stringent conditions, but you must not forget to bring the sensations back to the observer of the final picture. Wayne Levin chose to do it in black and white and, far from being a limitation, this becomes a way to make his photos more striking.
I loved those images where the animals seem to be suspended in the middle of nowhere, like the whale below or some of his sharks.
Diving humpback whale - Copyright (C) Wayne Levin
Be sure to visit his web site.