While not the flashiest design wise, I gave full marks for Polish due to the sheer quality and clarity of the content. The writing is clever and thematic, and a user-friendly layout combined with the depth of the mechanics provided makes me confident I could run this after a single read-through. I love the quotes for the NPCs, an example of how much detail and flavor you packed in. I also really like the mechanics to reverse the curse and calling out specific skills. Great work on a clean and streamlined adventure that I can't wait to run!
As a side note, I also went with an aquatic theme that features infection and transformation, and I love your take on it. I might mash our two modules together the next chance I have to run Mothership.