I make an unusual kind of art, but I haven't tried selling it, as you need a stable of interested people, and I can only post it in one place at the moment (a Facebook interest group on tiling, Instagram is overrun with AI, you can't start a new profile without lots of existing supporters). I've considered opening a gallery in my local area just to sell my art (5 million people in the metro, and barely a real commerc…
I have no idea how it works, but if you sold/licensed/created your art to fabric patterns, theres almost certainly a small market there. Clicking through your site (others are right, you could present your work better), I see plenty of “I’d buy a decently priced cool shirt of that pattern”. Sample size of one and all.
Honestly though, unless you’re pretty much only selling in person or too small to notice, someone is probably just going to rip you off using AI and sell shitty knockoffs on Etsy