I like the story concept a lot, and the pacing seems like a good start!
Something you might find useful moving forward is resources on the preservation of human remains left to the mercy of the environment - that's the kind of thing where a little bit of reading can save you from immersion-breaking mistakes that people with some expertise will notice.
Here's a pretty good resource document that includes some case studies: https://www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb1167745.pdf
Also, you're going to want to enlist a grammar editor (and/or just run the draft through a standard spelling/grammar check before you go into beta), as there are already a lot of them, and hoping your betas will catch them all is dicey.
Here are the errors I found in my one run-through of the demo:
Intro page: "taunt" should be "taut"; in the choice list, "Vanessa" is misspelled as "Venessa"
2nd page: "begs the question" should be "raises the question" ("begging the question" is often misused like this; it refers to a type of logical fallacy)
3rd page: "Sargent" should be "sergeant" (multiple instances)
"Look, I'm not interested in answering anymore of your questions. Why don't you go play interview somewhere else?" --> any more
"Very well, oh Asker of Questions." --> O Asker of Questions (the form of address isn't the same thing as the world "oh")
"aways that way" --> a ways
barest smidge --> smidgen ("smidge" is slang and might be fine to have a character say, but doesn't belong in your narration)
On the Stats page:
goodside --> good side
protige --> protégé
Hope this helps.