Something I noticed about the teaser -- in that shot of Alice standing there and looking out at the cages, with Boris on the table behind her, it looks like there's a big hand sticking up in the bottom left corner of the frame. And I could be wrong but it seems like the area out there beneath the cages is submerged in ink and whatever the hand is attached to is as well? I'm assuming it belongs to some kind of statue.
It’s from the “She’s quite a gal!“ statue:
There’s another Alice face in the room with all the dead Borises, so I’m assuming there was more than one of these at one point.