I agree, the box is kind of weird. But it's my ma's house, and her printer.
Um, the point of the photograph, is that it's taken in almost pitch dark, and that since the exposure is longer, it absorbs as much light as I allow. So, if it was darker, taken at the "normal" metered time, there would be no distinction of what you're actually looking at.
Actually, here, this is one of my test shots, significantly darker:
