Hello
So I have this nice headcanon redesign for The Collector
So in terms of in universe/actual designs:
The pajama pants are supposed to be like the one Luz wore in a few episodes like this:
While the cloak is a reference to this:
Also in terms of like an alternate hairstyle it would be this one by Khialat:
Bonus:
I got inspired to make and post this by this person's redesign of The Collector
(That person's Tumblr account)
So yeah if this gets popular I'll potentially give you all the code in Gacha Life 2