This feels like a perfect distillation of the horror of visiting a giant, corporate waterpark! There’s some intense dark humour in here and I feel like playing this as some kind of “evil dead meets that hitman from Fargo” vibe would be incredibly fun.
You've got a great visual treatment, I love mixing up the 6-panel format with the D10 Random Park Visitors table (also just love that kind of table for adventure like this with lots of bystanders). It has charming header treatments that are gaudy without being unreadable or ugly, a tough balance to strike! It reminds me of a visitor’s pamphlet in some ways.
On the critical side, I feel hierarchy of information is kind of borked, with headers and bold and italics being used kind of inconsistently. The idea of having pre and post disaster text is excellent but it needs to be differentiated with more than italics. I also feel that the statlines/traits for NPCs and monsters are listed without much visual treatment and feel harder to read than they should be.
None of these detract from the punchy, mean, darkly comedic core of this module though, and it's got a lot to recommend it! Well done!