Looks like an albino, and from the level of white, maybe a Snow Albino combo? What were the parents do you know? We'd also need eye shots to verify Albinism.
I'm guessing the second female is the mother. Cause she looks like she might have a bit of snow/albino influence. She's likely het albino and the baby would be an albino snow cross.
The middle gecko is a super hypo tang with some carrot tail. Some wouldn't consider her carrot tail though cause of how little orange she has in the tail. If your 2nd female is het rainwater then what type of albino is your male?
Then there is your answer. =)
They both had to have the albino gene to make an albino. If the 2nd female is het albino and the male an albino (or hypo albino) then those are your parents. Unless the middle female is het albino she could not possibly be the mother.
you can allways tell by the eyes, if unexpirienced then you may tell its albino but only with practice can you tell which type. Congrats on the rainwater though, i would love to work with some.