It's the composer from The World Ends With You...as a pony...just... because....
Since the composer if basically the god of TWEWY, he gets both wings and a horn. His cutie mark, the feather, should make sense to those who have beaten the game's hidden challenge.
He makes such a pretty alicorn...
TWEWY: Friendship is magic.
Sadly, in the entire TWEWY game, there is only one image of the composer, and what we know from it is he's a white human shaped blob of energy. So, my apologies for the abundance of white on this pony but...well...that's the composer's colors.
I still think he came out epic. Composer feathers make EVERYTHING epic.
I actually designed Pony!Composer before this challenge, but now I had an excuse to color it X3
He's my all time favorite character in TWEWY. Possibly all time favorite character ever. He's such a troll. You've got to love him and his snarky comments and useless information.
Edit: lol dear god. I posted this on tumblr and geez... I have never been reblogged so many times in one day X3 Which isn't saying much since I'm not tumblr famous but still. Pony!Composer is being loved on Tumblr.