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Remember - a photographer is judged by his best and his worst -- show and be remembered only by your best
(2) You are using a wide angle lens, which is fine for wrecks, but not so much for marine life, unless you get MUCH closer to your subject. I assume your wide angle lens is a wet lens -- if so, remove it when photographing marine life. And then get much closer anyway (assuming you can do that without harming any coral reefs or other animals).
you need to pare down your album, there are too many to evaluate to give feedback. Some are good shots but when reviewed against the totality of your album it is hard to tell if those shots were luck or not...but it seems like you have some elements of good composition in some of the photos.
-Z
Just took a quick look through your pictures, and noticed a few common areas where you could dramatically improve:
(1) You are almost always shooting down on your marine life subjects (fish, morays, etc.). You'll get much better results if you shoot either at eye level, or even better, from below. Look at the shark picture that I use for my avatar, and imagine how boring it would be comparatively if I was just shooting down on it.
(2) You are using a wide angle lens, which is fine for wrecks, but not so much for marine life, unless you get MUCH closer to your subject. I assume your wide angle lens is a wet lens -- if so, remove it when photographing marine life. And then get much closer anyway (assuming you can do that without harming any coral reefs or other animals).
(3) You mentioned that you are using a strobe, but many of your pictures of marine life look like they are not illuminated at all -- and I suspect that it's because you are too far away for your strobe to light your subject. You really should think about being not more than arm's length from your subject for good lighting.
(4) You are wisely turning some of your ambient light shots into B/W pictures. You should do more of that with shots where the color of the ambient light does not contribute to the image. Way to think about it is, does the color add to the composition? If the answer is not a clear "yes" then try turning it into B/W, and play with the contrast/shadows/highlights features of whatever imaging software you are using.
(5) Be more selective in how many shots you display. Quickest way to dramatically improve as a photographer!