The Bathroom

Both are short movies witch has more live-action parts than animated parts. Both feature paiting on a wall and both are more of a piece of art than something with a story. 

Both are old short anime mady by Kuri Yoji. Both have no story and are just completly random or even surreal. Watching these may be a bit trippy. While Kiseichuu no Ichiya is completly animated, The Bathroom have some live action parts. 

Both are short anime with almost no story and just random animation and background music. Both have more live action parts then animated parts. While passion is more of a music video, The Bathroom is a surreal comedy.