Very nice soundtrack !
I really liked the instrumentation on it, especially the xylophone/marimba (it reminds me of Monkey Island a bit, which is great), which also bring a beach-vibe very fitting for the theme you were going for.
The tracks I liked the most were the first two tracks (they have a very nice vibe) and Octo-Popper Supreme (which had a great energy and rhythm).
Overall great job so congrats (the Youtube animations were also very nice, and congrats also for being able to rate all the projects, I can't begin to imagine how long it was) !