Quick answer — Kazuko Nakashima worked on Your lie in April (Color Design), Anohana: The Flower We Saw That Day (Color Design), Big Windup! 2 (Color Design) and 23 more anime.
Kazuko Nakashima worked on Your lie in April (Color Design), Anohana: The Flower We Saw That Day (Color Design), Big Windup! 2 (Color Design), The Anthem of the Heart (Color Design), The Idol Master (Color Design), THE IDOLM@STER MOVIE: Kagayaki no Mukougawa e! (Color Design), Valkyria Chronicles (Color Design), WONDER EGG PRIORITY (Color Design) and 18 more.