I kinda wish I could see other people’s drawings.
Also, somewhat prior art (literally):
just create an embedding of your drawing, then an embedding of the actual suspect. and check the distance. if it's around 5-10 drawings you know are similar - then it's a match. if not then not. embedings of matched drawings can also be used to adjust how close the drawing has to be to the image.
https://www.independent.co.uk/news/world/americas/worst-poli...
I can understand if he needs a way to fund it but seems overly explicit if it's just for running some ads.
Moreover, I cannot edit my previous comment.