both the background and song are good animes

X Jigen e Youkoso - Etsuko Yakushimaru (ED song Space☆Dandy)

Heart of Air — Blue Flow (Haibane Renmei Ending)

Link to song on Youtube: https://www.youtube.com/watch?v=onLE_XYbJYY&index=3&list=PLb-IClcV563H9_Vli0sZoPVKEebiRM8c6