I agree with the previous posts and I will add this the more variety you want the more genes you want except in your case with a champagne not the best choice, champagne is a very overpowering gene and a lot of the combos look the same, unless you go with something leopard enchi.
Go on WOBP and look at champagne combos, but remember breeding is more than just putting two snakes together there is a lot that goes into it.