The way the young woman has nobody so a wall is hugging her. There is a contrast between the wall and the woman. The wall been black and the woman being white. Which could mean she is being brought Into the dark side.
BB: Masks worn by doctors during the Plague. The protective suit of the plague doctor consisted of a heavy fabric overcoat that was waxed, a mask with glass eye openings and a cone nose shaped like a beak to hold scented substances and straw.