Hi, I've been playing this game on and off for a while now, and I wanted to leave a few comments.
First off, as an art lover and art history lover, the amount of detail and research you put into this game is incredible. I especially appreciate the focus on obscure and marginalized creators, as well as the historical criticism of some iconic artists. There were a lot of artists featured in this game that I never heard of, so I really appreciate you taking the time to do your research and highlight some overlooked artists.
The game mechanics are also fairly simple to understand. It didn't take me long to figure out how the variables work, and the experience was overall pleasant.
One criticism I have is that after a certain point, it becomes really hard to get new cards because they're so costly, so I have to wait a really long time for one card. I suppose getting every single artist isn't necessarily the point of the game, but I don't want to miss out on learning about all the artists you included. I think it would be nice to make getting new cards late into the game easier, or maybe add a prestige system to make future playthroughs go faster.
Alternatively, I think a web page documenting all the artists you included in the game would be a nice way for us to go through them quickly. I recall you making a comment in a Reddit post about how you wanted to include links to the artists and their works but ultimately didn't, so I think a web page would be a good compromise.
Overall, I greatly enjoyed this game both as a fun way to pass the time and a surprising way to learn about new artists and art history. Later gameplay can be frustrating, but other than that, I greatly enjoyed your game. Keep up the good work.
Side note: If you ever decide to add new domains, I think a domain about web art and/or graphic design could be interesting since there are some pretty influential web creators and graphic artists out there.