Not reef related but had to share!!!

[sphelps]

Great lighting, subject and composition but poorly executed. The shutter speed was too slow for the amount of zoom resulting in fairly obvious motion blur. If this shot was taken in the wild it would be excusable since any amateur photographer would be shaking in fear and the story would compensate for the blur. However since it was at the zoo you could have quickly adjusted the settings or used some kind of brace. I only bring this up because IMO it's clearly not your best work and judging by your equipment and other photos you can do better. Plus this is the photography forum