You need to give yourself more credit. Your comic has a dark, foreboding aesthetic--and that's horror, too. It's interesting that you set it during the 1918 pandemic, how did you get to that decision?
The art is good and I see that you're growing and improving with every chapter. Also very curious about the hook!
I only have one minor suggestion: when characters are in masks, their body language should match. For instance, I notice that nowadays people are much more reluctant to touch their heads, faces, or chins.