This is indistinguishable from something that would be hanging in an art museum, and anyone pretending otherwise only believes so because they know a priori that it is generated by ML.

Honestly I would consider buying something like this, though I'd never waste my money on something so pretentious from a human. This, however, is an achievement, and there's beauty in that.

Edit: in fact, if love to see two tests: a blind test with a series of humans, and a classifier trained to differentiate between machine and human generated art. I have no doubt that the humans would not score much better than chance - I bet only an artificial discriminator would be able to tell, and then only because of subtle differences in pixel distributions that humans won't perceive. Throw in a couple different GANs trained on different distributions and even a machine will have trouble telling the difference!