As for the combos the same can be said about other mutations if that is really the way YOU see it.
I can't see the resemblance between the CG Pied, CG Clown, CG Spider, CG Pinstripe, CG Champagne, CG Leopard, CG Cinnamon etc
Sure some may look similar but it is all about what you are pairing them with just like any other mutation.