Random tables! That's what I like to see!
I will use some parts of this adventure by my table. The glitter bomb box is a silly yet devastating (psychologically) trap I've seen. The randomly encountered creatures have their reactions pre-rolled (i.e. the crocodile is never out-right agressive, the corpse revivers are always hostile etc.). On one hand, it's a shame, since I like the uncertainty. On the other hand, this might speed things up for the GM. I'm on the fence.
The swamp-crawl is what confuses me. It has the interesting random encounters, there's a nice-looking map but there is nothing to do there. Just the witch cave. It's unfinished and would require the GM to expand heavily.
Another, smaller, thing: why? There were many "whys" I had when I was reading this scenario. Where does the hermit witch have books from? Where did she learn to read if she was abandoned in the swamp as a baby (great villain backstory, BTW)? Why does she appear as a random encounter only for a moment (does she enjoy scaring people? We know she is a serial kidnapper...)?
So, good premise, interesting (though heavily underdeveloped) swamp to explore, some good loot to snatch. It's a scenario which suffers heavily from being confined to 8 pages.