I would say that you move all your Non-Canon artworks to your new Account and letting your Videogame/Comic/Manga/Anime/Cartoon related things here on your "Izumi"-Account. In this way you don't need to delete all your works, you simply just move your works that have nothing to do with anything related to games, tv-shows or comics etc. on your "Melian"-Account. You keep your accounts clean and sorted by this.

I really wish you the best with your second account hun!