I only guessed a single one as generated by AI and I was wrong on that (the mouse in the boat drawing felt like unusual shaping and shading for a human). I really could not identify any telltale signs of AI in any of them, so answered entirely honestly that none of the others looked like AI generated.

To be honest, I expected that. The telltale signs people often talk about are only problems for bad AI art. Well done AI art really is indistinguishable. Stuff like weird fingers, faces, and teeth are only problems if the prompter is lazy and just picks the first thing generated (and doesn't selectively regenerate). If you're selective, you can get AI art without the things some people claim make AI art easy to recognize.

It's like photoshop or movie CGI. Anyone can detect a bad photoshop and we're used to seeing those. But well done photoshops by experts can be near impossible to detect (short of careful pixel level inspection, which doesn't really apply to AI art). Yet, a lot of people are over confident in how well they can spot photoshops.

I wonder if this will change anyone's mind? I've always wanted to do this for a few topics, including AI. I've also wanted to do this for trans vs cis people (so many transphobes claim they can "always tell"), movie CGI vs practical effects (see also: Captain Disillusion videos), and for various kinds of food and drink (so many people are elitist that something tastes better -- simple example that I've actually seen disproven is the various kinds of eggs, including store bought vs locally sourced).