You got some really nice footage particularly when you consider you were using a new camera. You avoided the dreaded look-down shots. I used to edit video using analog equipment and it took forever. No doubt putting together a 15 minute video took you a number of hours as well. The editing was smooth with no jump edits or edits where you crossed the line both of which can be quite disconcerting to the viewer. I might make a couple of constructive comments. First, there were very few long or medium shots (followed by medium or close up shots which move by about 30degrees from the previous shots so there are no jump edits). Without these longer shots it is very difficult for the viewer to get any perspective particularly if they are non-divers. For example, when you jump from large fish to nudibranchs a non-diver will have no idea how big the nudibranchs are. Second, some of the scenes are a little long. A series of medium and close up shots (less than 30 seconds and the set up shots can be much shorter), IMO, are more effective than a single scene using the zoom control. As a diver I was happy to watch a 15 minutes video but most people will have a shorter attention span. I now try and keep my videos between 5 and 10 minutes. Two videos shown half an hour apart (after a beer) seem to go over better with most audiences. There a number of books on how to shoot underwater video and even the old ones, when we used 8mm and Hi-8 tapes, contain the same tips on shooting video. Any of them are worth a read.
However, my comments are really nitpicking and the video was very interesting. Looks like you had a fabulous trip with lots of little critters. My favourite scene was the Moray with the cleaning shrimp. Keep up the good work.