Fluttershy:  
1/2 Ethiopian, 1/2 Native American|Trans Girl|Panromantic|Demi Sexual  
Raised by incredibly supportive parents who divorced when she was 13, she went back and forth between parents often, so she when she made the decision to embrace her identity, she only wore a hijab with her mother, so she still only wear it sometimes. (This is mostly just because I love her with a hijab, but I also want to draw her with long, silky hair)
 
Applejack  
American|Cis|Biromantic|Homosexual  
A farmer. I don’t really have any interesting head canons for her. :/
 
Rarity  
1/2 French, 1/2 Japanese|Trans Girl|Biromanitc|Bisexual  
A woman who wants everyone around her to feel beautiful, in her boutique, she doesn’t use actual sizes, but replaces them with words like”Beautiful” and “Fabulous” and carries plus-sized clothes as well. Her, Fluttershy and Twilight are incredibly supportive of each other.
 
Pinke Pie  
1/2 Brazilian, 1/2 Italian|Gender Fluid|Panromantic|Asexual  
Uses whatever pronouns, she loves helping other people see that gender is fluid and that they can be whatever they want! Adopted by the Cake family, who are German.
 
Twilight  
1/2 Vietnamese|1/2 Indian|Trans Girl|Homoromantic|Pansexual  
Moved to Ponyville after her peers in Canterlot gave her a hard time for being trans and she fell into a state of depression, but then she met new friends who were incredibly supportive, especially Rarity, who taught her to embrace her femininity. (She used to mostly just wear sweatshirts and jeans)
 
Rainbow Dash  
1/2 Chinese, 1/2 French|DFAB Genderqueer|Homoromantic|Homosexual  
(She/Her) Her mother died when she was really young, so she was raised solely by her father, which is the main reason she’s so boyish. (Her skin and body type are heavily based on my friend, who chinese)