this one is "hommage à eric satie" by erling pedersen.
in the video, the first painting is a portrait of satie done by suzanne valadon. the other paintings have suzanne in them as a model, and are painted by toulouse-lautrec or renoir.
wikipedia has this to say about the relationship between erik satie and suzanne valadon:
Satie and Suzanne Valadon, an artists' model, artist and a long-time friend of Miguel Utrillo (and mother of Maurice Utrillo), began an affair early in 1893. After their first night together, he proposed marriage. The two did not marry, but Valadon moved to a room next to Satie's at the Rue Cortot. Satie became obsessed with her, calling her his Biqui, and writing impassioned notes about "her whole being, lovely eyes, gentle hands, and tiny feet". During their relationship, Satie composed the Danses gothiques as a kind of prayer to restore peace of mind, and Valadon painted a portrait of Satie, which she gave to him. After six months she moved away, leaving Satie broken-hearted. Afterwards, he said that he was left with "nothing but an icy loneliness that fills the head with emptiness and the heart with sadness". It is believed this was the only intimate relationship Satie ever had.
https://en.wikipedia.org/wiki/Erik_Satie