EYYYYYY, I figured it out I think!
Just two boyfriends taking a walk into the deepest, darkest subway corridors! They're probably lost! :V
I think this is way closer to the spirit of what I was trying to make in the first place. But this previous version does have a nice "spooky hospital" vibe that I appreciate.

I actually like rendering tiles?? There's something about the constant repeating shapes that really speaks to me, a person who has basically made a living drawing stacks and stacks of boxes in comic panel backgrounds. 😌