I'm fine with your spookiest of icons, and I'm enthusiastic about the concept of seeing that stuff in-character, but alas, I find it difficult to imagine Bastion getting a lasting case of heebie-jeebies from seeing a cursed image. Side effect of being a robot, more than personality or past experiences. (Might be fun for her feature distortions to incorporate inorganic elements when she's talking to them, though?)

I'll get back to you on the hauntings ifwhen I app in a second or third character with a meat brain!