This is just some planning advice...As everyone has mentioned, decide what your end goal or big picture will be. Plan ahead by researching the different dominant, and recessive genes related to your desired traits. You'll learn that some will result in co-dominance, or incomplete dominance. A really handy tool is using punnet squares. If you have experience with punnet squares, then awesome, if not, definitely learn about and how to use it. It will help you figure out the probability of your clutch, and how many generations it will take to get to where you want to be. Knowing this information, you can then decide if you want to purchase snakes that have those genetic dispositions already, which could save you time, money and effort.
I don't have any breeding experience, so I can't put in much else, but I wish you the best in the future, and hope that your goals are met.