She is a pony into goth fashion and culture, and runs her own little goth themed clothing and accessory shop in Manehatten. They sell all sorts of gothic style clothing, along with other items like toys and makeup.
Dollface also really likes her masks, as she is seen wearing them almost everyday when at work and out and about. It might come across as creepy to other ponies, but she is a genuinely sweet and kind mare, she's just a lil weird X) She also likes to spend time decorating different types of plague doctor masks and customizing/modifying different types of dolls, and she's also a big horror movie buff.
She was not fully developed when she was born, resulting in her being born with only one wing, only getting a prosthetic metal wing made when she was a kid. Becuase o this she's not really good at flying, at most she is mostly just hovering above the ground.