I've been there... a bit back - but I learned to Scuba Dive in St. Lucia and went on to become a professional Scuba Instructor - I had so much fun. It's fun to see these photos. I remember the place well.
besides that - you did an awesome job on the set. If I were to guess I'd say that #16 is processed with "Old Skool Fast" from the TRA set. And then #17 is prolly "grandma's tap shoes" or something like that.... maybe Pool Party with something else mixed in?
I love number 6, it distracts me a little that the dress is cropped out of the frame though. Just a suggestion imho but I would maybe go wider to keep it in, fill up the frame with more of that gorgeous scenery. 8 is amazing, love love love the boat in the background. The processing on 9 is wonderful, wanna share your secret? I love the background and placement on 14 as well, brings an international feel to it.