applejack:

• the tallest and beefiest of the 6, she towers over basically everyone
• she has scars on her back leg from getting it stuck in some machinery on the farm
• has a lil cherry charm in her mane to match her wifey
• owns the farm in ponyville and co-owns a bakery in dodge junction with cherry, is split between the 2 places

princess twilight sparkle

• the third shortest, i didn’t really get it here but she’s a lil chubby and she’s perfect
• nerdy bab and loves her job as a teacher
• horrible eyesight gang
• the ends of her mane and tail are going glowy and sparkly, something that comes with time + magic ability for alicorns
• has an interest in dangerous and magical creatures, and loves to study them with fluttershy (honestly if she had a few less morals she would probably run some more questionable tests on them. she never would don’t get me wrong, but it’s like those sick lil thoughts in your head that interest you but you’d never do)

rarity belle

• third tallest, is a lil taller than average
• not much on her design, but she has the special tail which is a rare genetic thing from a group of unicorns a long time ago, this is also probably why she’s so good at locating gems (which hold a lot of magical power)
• a top fashion designer and she works with rainbow on wonderbolt uniforms on the side of her usual fancy clothes
• absolutely adores flexing her height on rude insecure men

pinkamena diane pie

• smallest fluffy ball
• very big mane and tail
• tiny but could deck you if she needed to
  -deadly when on too much sugar

rainbow dash

• second smallest, tiny rainbow supremacy
• has scars and is often injured due to reckless stunts (only her own, if anyone on her teams tried anything too risky she’d ground them. literally)
• captain of the wolderbolts (she’s changing them to be actually helpful, along with their shows)
• her other eyebrow is the other colors of the rainbow btw

fluttershy

• second tallest, a long baby
• the cottage core lesbian
• loves to wear different flowers in her mane and tail, and changes them often
• is a vet, but studies magical creatures and plants on the side because they’re really interesting and often misunderstood, she and twily bond over dangerous magical creatures
• scars on on of her front legs from getting caught in a trap while rescuing an animal

idk how well i said their heights so from shortest to tallest it goes:
pinkie -> rainbow -> twilight -> rarity -> fluttershy -> applejack