I’ve taken some visual art classes. I’m terrible at drawing—as you would expect from someone without a lot of experience—but I felt it would be important to know how visual art works and how artists think. Listening to the professors talk was in many ways more useful than the practice itself, though I did enjoy the drawing as well.
(As a side note, my final project for an art class in 2002—a basic drawing class—was a landscape of Roshar with rockbuds and the like. I took a stab at doing my own concept art, and bad though it was, it did help me start to visualize the world.)
How Shallan thinks here is really a blend of how I think as a writer and how I’ve heard visual artists think of their process. I’m drawing heavily on my own experience, and because of that blend, I suspect that to many artists her process will sound odd.