I am glad they arrived safe and well and it looks like you have taken very good care of them. I love the pic with the bronchis next to the little albino. She looks like a giant compared to the other one!! Look forward to watching them grow and good luck.
One of the babies with super long fins has one fin that is a little corkscrewed. He swims well and seems healthy, but he is a little kinky. It is his front left hand side fin. Which fin is that? Might be where a Betta ventral would be or the little flutter wings.