Here is the full list of all 15 Anime Artist: Tiffy’s Notty Secret achievements.
Complete level 15!
Complete level 14!
Complete level 13!
Complete level 12!
Complete level 11!
Complete level 10
Complete level 9!
Complete level 8!
Complete level 7!
Complete level 6!
Complete level 5!
Complete level 4!
Complete level 3!
Complete level 2!
Complete level 1!