I believe the concept is the Shawn's. He took the idea from somewhere in which a card was selected from a red deck and appeared in a sealed blue deck. It was discussed on the cafe however Shawn reworked some aspects of the method and the gave it a whole new presentation.
It's funny because it came with a side-note of an improved version which makes the whole thing similar to Shawn's (or actually, Shawn's version is similar to this). Cyril still does the whole routine as described. Shawn however has a way more original routine but does the ending slightly more classical (more similar to the original unimproved method than Cyril did, that is), yet both still do it as it is described (also because I don't think there is much room for improvement anyways).
The only thing I seen Shawn adding was handing out the box (though he could've done that differently as it was far too suspicious if you were in the audience). But this doesn't make the method more original at all. And Shawn's presentation of the effect itself isn't much original either.
All in all I prefer Cyril's routine, only because I think Shawn's skills aren't good enough to perform his own routines due to too many unnecessary and suspicious handlings. He's still genious though, and I do actually like his stuff.