The best comment I can come up with is this.......
Not only does the Musstard man have a keen eye for composition, but his photos do something we all could (and should!) keep trying to achieve in our photographs. They tell a story! Each and evey one has elements that evoke emotion, action, humor, etc.
Isn't this what a photograph is supposed to do? Affect the viewer? Make them laugh, cry, get angry, etc.?
I also think the lesson from Lex's pictures is, if you want to improve your UW photography, shoot anything and everything possible....It will make you learn to "see" no matter your choice of wide angle, macro or telephoto lenses. Plus improve instinctual camera handling.....
Man oh man do I wish I could've got this type of gig!! Plus if you are an animal lover it looks like it was great fun 
dhaas