I am so glad to see an artist I respect so much turning to AI art. Was this done with midjourney? If not, I do have a couple of invites left I'd be happy to share. Additionally, if you're looking for other tools, I make custom diffusion models; current releases are Pixel Art Diffusion and Pulp Science Fiction Diffusion.

As a sidebar, I wonder what would happen if you were to train your own custom diffusion model using your own pieces as a dataset? It wouldn't be hard to do, and the results could be unbelievably cool.