Before I throw this onto the main site, I'd like to at least get some reads on if it's vote-worthy. For such an old, beloved SCP, there's remarkably little material about -085, and I don't know if that's because it's just not a popular topic or because it's so hard to write something people like.
Can Cassy interact with photoshopped images? Aside from that, I like it. The pop-up book idea was interesting.
According to the -085 page, she can only interact with paper or canvas. It doesn't appear to matter what the image is or where it came from, only what medium it's printed on (and if it's an animal/person) - so a photo or part of a photo that's been printed on ordinary paper with, say, a laser printer, seemed like fair game. In this case, the photoshopping was removing the humans modeling the costumes in the catalog.
TLDR: In my canon (and thus the story), yes.