Hi, peeps, firstly, congratulations on your marriage, the things you wrote are very adventurous and quite lovely, BUT, the style you wrote it in is very Hemingway-esque, meaning, that the narrative is just that, narrating, with using conjunctions. Where's the flare, where's the madness and thrill of being stuck on a sandbar but not really caring because you stared into one another's eyes and saw the entire universe unravel?
I would definitely change a lot, not in the story itself, the story is great, all the elements are very fun and promising, considering someone (preferably myself) were to change it a bit. I would add some style to the paragraphs, perhaps even a different style for each paragraph or group of paragraphs, for example, the scene with the sandbar could be written in the style of Edgar Allan Poe's Raven, or any other author. We could add some brisk Terry Pratchett-esque humour to the texts.
Overall, the story itself is great, but the way it was presented is quite uninspiring, which really makes it look very plain, and judging by the events themselves, it was not plain at all, not in the least.
If you were to choose me, I would love to have a Skype chat with you, so as to hear some more details about the whole story, because that would really make it a lot easier to write and imagine everything and not tell lies (the lightning hit the ocean, it's shine reflecting off of Joe's sunglasses, etc).
Anyway,even if you do not choose me, I do wish you all the best. :-)