Too Inspired

So I loved the Worldview site by @Jesse and was inspired for a project I am currently working on. Now, where's the line for something like this?

I don't currently intend to use this for a project, just wondering what other's thoughts are on what counts as "crossing the line".

I suspect this does, since it's folded in to 4 pieces and in a very similar way. What do you think? It's especially hard when it comes to maps. If I gave it more folds does that differentiate it enough? Is it how it's used?