I voted Moonshine (clear) but you did not list an option for Amethyst (purple) which looks pretty cool. Each one says, "
Due to high demand and because every ukulele is made to order, the current production time is 2 weeks". You are apparently going to have to order and wait it out.
I have a clear Waterman, but being a soprano size it does not get much play time from my big hands. I bought it for the novelty. A friend promptly suggested that I get a plastic goldfish to stick inside like an aquarium.