It always seemed like most of the popular art on Reddit was based around pop-culture. That's not really her thing, so not sure how popular it will be here.
Her name is Dominique Marriott and she paints these with a calligraphy brush. I don't want to cross-post the same stuff everywhere, but it seems like Lemmy really needs as much content as possible at the moment. So I'm putting different pictures on different communities. Take a look at my profile if you want to see more of her work. And do say if you like it. She'd love a better option than Instagram.
It's so elegant and simple, it has exactly the strokes it needs so that the shape can be identified. I love it.