From Description
 
This picture originally had a bunch of dialogues, that’s why the dazzlings look like they’re talking:  
Aria: So, what are we doing exactly?  
Adagio: Today is Halloween, I figured we could join this festivity for once and find a way to restore our pendants.  
Aria: But why witches?  
Adagio: I have several reasons, witches being masters of dark magic is one of them.  
Aria: But everyone ALWAYS dresses as witches! It’s so repetitive!  
Adagio: Besides, Sonata likes it  
Sonata: Well, it’s kinda cute  
Adagio: See? She lik-  
Sonata: But yeah, it’s pretty overrated.  
Aria: YOU are overrated!