I appreciate this survey for how thought-provoking it is. Ironically, I'd say that the survey is itself art. And not a piece of art that AI in it's current state could ever pull off. Maybe that's when the AI art turing test will truly be passed, when AI is capable of curating such a survey.

For me what really distinguished the more obvious human art is that it had a story. It was saying something more than the image itself. This is why Meeting at Krizky stands out as obviously human, and so is The Wounding of Christ whereas muscular man is not.

As with other commenters, I'm surprised the author liked the big gate so much. To me it was one of the easier AI pieces just by virtue of it's composition. It's a big gate. With no clear reason for being there, there are no characters that the gate means something to. It's just a big gate. Obvious slop. Paris scene on the other hand, did convince me. It does a pretty good job of capturing a mood, it sort of feels a bit Lowry but more french impressionist.

I think this has similar parallels to good character writing. A few words of dialogue of action can reveal complex inner beliefs and goals. The absence of those can feel hollow. It's why "have the lambs stopped screaming?" is more compelling than "somehow, palpatine returned".

To some extent, we already have had this competition between human made high art and human made generic slop for hundreds of years. The slop has always been more popular to the chagrin of those that consider high art to be superior. I don't blame anyone for consuming slop. I do. It's fun.

This is a bit of a ramble but I honestly appreciate that this survey genuinely adds another perspective to the question of what art is. Sorry if that sounds extremely pretentious. But then again, I like slop.