
Quick answer — Ikuko Itou worked on Princess Tutu (Original Creator), Sailor Moon S (Character Design), Somali and the Forest Spirit (Character Design) and 4 more anime.
Ikuko Itou worked on Princess Tutu (Original Creator), Sailor Moon S (Character Design), Somali and the Forest Spirit (Character Design), Sailor Moon SuperS (Character Design), AKB0048 (Chief Animation Director), One Piece: Chopper’s Kingdom on the Island of Strange Animals (Key Animation), The Disappearance of Nagato Yuki-chan (Character Design).