Nice pics, and nice tank. I would suggest adding some halimedia. I see lots of that whenever I go diving in the Keys, and it'll do (some) nutritional uptake as well. Looks cool too.
Maybe check out some of the yellow corris wrasses, as I see those frequently while diving. Last time I went diving off a beach I was followed by a school of cool looking triggers who were WAY too big to put in my 120g tank. It was awesome, except I was worried about them biting my fingertips since I know that Triggers are infamous biters.
Oh, and Arrow crabs are cool and indiginous as well.
Not much help, but hope it helped a bit.