Wrightson

Wrightston was a successful artist and writer in Equestria. During his life, he wrote a book that would later be used by Spike when studying to create a painting for Rarity on her birthday.

Behind the scenes
Wrightston appeared on "Cover A" of the 28th issue of the Friendship is Magic comicbook series by IDW Publishing, along with Newton, Leyendecker and Sneyd. He is likely named after Bernie Wrightson, best known for his work on Swamp Thing.