Thats interesting. Although, if this snake is well within the range of a Columbian natural colour change, do you have photos of any that have gone to this extreme?
I am by no means knocking anyone, I am just intrigued. My rainbow boa experience is very minimal, and I am here to learn, but that seems to me just 'too' unusual to be a normal.
Ofcourse, as stated before, it needs to be bred further to prove genetic.
With this kind of snake, whatever the species, it is a keeper. When it comes to my sand boas, I have come across many which are just 'damn nice', some may or may not prove genetic, but at the end of the day, I will have a stunning group of adults. This could be the case with this rainbow.
Good luck with it anyway.
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Regards
Chris Jones
Chris Jones Reptiles