These are called artist mashups over at NightCafe Studio. You start with any picture you want, then you run it through the ai algorithm and apply every artist modifier to the prompt. So this picture has around 40+ different artists included in the modifier. The artists are:
"Alex Hirsch Alphonse Mucha Amanda Sage Ben Bocquelet Bernie Wrightson Canaletto Caspar David Friedrich Claude Monet Dan Mumford Dan Witz Edward Hopper Ferdinand Knab" - weight: 1
"Gerald Brom Greg Rutkowski Guido Borelli Gustav Klimt Gustave Doré H.R. Giger J. G. Quintel James Gurney Jean Tinguely Jim Burns Josephine Wall Julia Pott" - weight: 0.9
"Kandinsky Kelly Freas Leonid Afremov Max Ernst Moebius Pablo Picasso Pendleton Ward Pino Daeni Rafael Santi Rebecca Sugar Roger Dean Steven Belledin" - weight: 0.8
"Steven Hillenberg Studio Ghibli Thomas Kinkade Tim Burton Van Gogh Wadim Kashin Wes Anderson Zdzisław Beksiński