I agree mostly with Aaron; however, the individual has mormal black pigmentation on its head and in the deli-cup varieties, these are some shade of pastel as well.

I think it is a simply a washed-out pattered, normally pigmented, albeit likely rare, example of what does (or can) occur the local population genetics. The wild female also exhibits similar characteristics. That's my 2 cents worth anyway. Nice snake Colin, lucky you and good job.