Kara no Kyokai, Madoka Magica (especially movie 3), and Petit Cossette.
snow falling, Haru wa Kogane, or Mirai?
(checked the hb cover on westkana's post and i'll sound like a jerk but the singer's voice makes the almost unbearable heavenly blue becomes totally unbearable. i think this "dragging" style of singing is not my cup of tea. same reason why I can't enjoy aimer at all).