Cowboy Bebop director Shinichiro Watanabe says Faye’s portrait of Vincent in the movie was drawn by a Chinese restaurant worker.
The man had seen Vincent once and drew him from memory. Watanabe said animators who tried to draw badly still made it look too good, so the team looked for someone who was genuinely bad at drawing.
“Even when animators try to draw badly, it comes out well.”
That is how the worst portrait in the film ended up being real.