I will admit, I think I preferred the simpler layout without the blood smears. Maybe a "singed" look would be more suitable?
That being said, holy smokes! This is great. The writing, the horror, the decision making. It's good stuff.
I agree with LionHeart's comments about child endangerment. If I were running this, I'd age Sarah up and make her less integral to the solution. I also don't think you need the Cannibalism/Zombification of The Charred. Without it, there's still so much horror and conflict, but it would open up more room for creative problem solving and roleplay.
I'm still so impressed on how you fit that whole "The Experiment" section into your pamphlet module. It really highlights your writing chops. And the cover art is still soooo creative. Good work!