What if we just put images together?

People are saying that it was it was a layered image, right? Suza's body and Mariko's head or Mariko's head was made bigger, so what if we just saturate images of her that match up and photoshop them together? If someones tried this before, clearly I don't know. Would it work? Probably not, but still. (I'm trying to photoshop right now)