We joke about the ghost that lives upstairs every time we here creaks and groans (probably our house is going to fall apart one day).
The ghost is me but the face is a mask of my daughter's face which she made while she was studying performing arts (over two decades ago, but the mask is still here).
Little camera on tripod, long exposure, and I got up and moved after a bit of it.
I used onOne for textures, 3 of them, and ended up with ooky colours, so converted to black and white with tint at something less than full opacity.
This would scare the crap out of me if I came upon it un-expectantly. Great job in carrying out a very effective long exposure which doesn't look like a long exposure - it looks like your house is haunted.