This is just beautiful. The aqua with the brown of the starfish makes for a beautiful compliment! The shimmer adds nice dimension, yet it is still tack sharp. WOW - I'm mega impressed.
I haven't seen many underwater shots here, but I am starting to get an appreciation for how difficult they must be. I guess underwater tripods at this depth would need lead legs or be virtually useless. Assuming this is handheld, you've likely done very well. This is a good shot and the colors are very nice. 'If only' the starfish were sharper and more detail/texture able to be seen. Really like the shadow play, adds a very nice element to this shot.