So here’s the next of my G5 designs for the ponies, and here’s something I want to point out.
 
Each of the horse species, (pony unicorn pegasus) has a different body type.  
Earth ponies have a very horse-like structure, being bulkier than the others.  
Pegasi are more birdlike, with skinny legs, teardrop-shaped body and short muzzles that are shaped like a beak.  
Unicorns are a mix of a lot of things, a more goat-like stature and muzzle, a taller structure, cloven hooves, and lion tails.
 
So here’s Thistle Whistle, and she aids alonf North Star and Woodworks (Applejack). She works as a deliveryhorse mainly because she loves the feeling of giving gifts to others. She always sees the best out of everything, even when she works at minimum wage and has a horrible boss. She is also pretty hyper and loves eating ambrosia, a type of food packed with energy that is too dangerous to eat for other species. (and she likes nectar, which is liquid ambrosia)
 
Oh, and she likes whistling songs when she’s bored.
 
I hope you like it!
 
MLP: Hasbro  
Art, Character: Me