Awesome I live there, I'm a Asst NAUI instructor (someday I need to finish that and get my instructor Cert, all I need to do is give my Cert lectures) and Master Diver, thank you for your kind words, I have been in love with the ocean since I was a child. Your right it is so hard to shoot underwater, so much of what you know on dry land goes out the porthole, lol, some basics stay the same subject matter, framing, and lighting, however lighting is a two edged sword underwater. As you know all color disappears past 30 feet except blues, violets and yellows, the only way to bring them back is to light it up and then the clarity of the water kicks in too much light and water you end up with back scatter or the wrong angle of the flash or the timing of the flash, the list of issues goes on and on, not to mention the subject matter can sometimes do great harm to you, lol. I wish you well in your Divemaster training
"As I Wander"