Syd can dress up nice when she wants to, but her usual fare is pretty slapdash. Nyan I could see being a very lazy dresser most of the time, as part of her tomboy nature.
The long and short of it is that Zen's mother has always had health problems, and cursed her existence, and as a result, took it out on Zen, so Zen suffered a lot of physical and emotional abuse growing up. Once Zen was old enough she left home. Apparently this woke her mom up as to what she had been doing, and she tried to make amends with Zen, but her health conditions got worse, and by the time Zen was in her early twenties her mom was dead. Zen talked about how the gear shift of her mother going from abuser to repentant and trying to fix their relationship was hard to deal with, and Zen regrets she didn't get to know the kinder mother more before she died. Worse, Zen said she never got a chance to say everything she wanted to say to her mother, both good and bad, so she's full of regrets. When you know that, her comments about how Mousey reminds her of her mother, and Mousey being in a similar health situation, it makes sense why Zen is so close to her. This was all stated on stream, so it isn't dox even tho Zen deleted that VOD. She still told her audience, and I was there watching. I was very worried about her that night, that she was going to say or do something that would destroy her career, but despite being passing out drunk, Zen kept it together, but just had to get some shit off her chest.