I'll assume so for now. In which case, it varies between suits, maquettes and puppets as this kind of thing often does. So there is technically no correct or incorrect look. If you wish to find images that match either, you probably won't struggle. This one for example is more inline with the Prime 1 offering. In fact, the rest of it seems to match up fairly well also so this is probably the suit CP & P1 used for refference. Man this thing is so good...
We know the Sideshow version was based off of the rod puppet.