Boo

EDIT: YES, I know that her mane on top is not lined up xD Like I said, it was done on a boring moment so it's not perfect.

Was bored while watching her stream and just opened Inkscape on my boyfriend's PC and started to freehand vector a pony.

You could say this is just a random white pony but I'm thinking it's Boo from the Project Horizons story
And if you say I forgot her highlights then I just say that it's in her starting days when she is first introduced. She starts to be more conscious later on.