Given that Homestuck is Western based, and not at all related to anime, manga, or Asian-based medium in any sense, chances are that this skit wouldn't be allowed to compete at any anime convention.
Alibaba - Magi: The Labyrinth of Magic
H/A Elsa - Frozen
Yunan - Magi: The Labyrinth of Magic
Mephisto Pheles - Ao No Exorcist