I think that is a great pic. I won't even put my pic's on the internet anymore.
Luckily, my local reefing club (Saltwater Enthusiasts of St. Louis) is having a meeting this morning on how to take good digital pictures of fish tanks. I purchased a digital camera but due to a lot of overtime at work, I haven't had time to open the book.
ID'ing corallimorphia can be a great challenge. Is this a rhodactis or a frilly discosoma? Who knows? Even the scientists can't figure it out often.