Did you provide the AI with the Munch picture, then basically say, Show me this in the style of Vettriano? Or did the AI already “know” the painting?
I just gave it that basic prompt, so I guess it "knew" the painting. You can give it a reference image by providing a URL to an image. I'm playing around with Midjourney to try and back-engineer paintings but to place a scene in a different era. It's quite interesting stuff. I would agree with
@shawnbm though - there is an unseen ingredient missing.