I'm only here for the popcorn and tea, but I'm curious. Why would this Red Cube person, if he or she had the originals, deliberately create a fake? That seems weird. And I've done enough (professional) Photoshop work to know that you can't pull that red watermark off the "original fake" without artifacts appearing in the "BMB fake" that follow. But there's no sign of artifacts, although the BMB is slightly fuzzier. But even that loss of precision isn't helpful, given that the red line of text crosses what appears (in the BMB version) to be a fold in the mattress sheet, which no currently available watermark removal tool could re-create from pattern analysis alone.
@nightbat may well be right in his assessment.