When my teacher saw what I was attempting to paint, she was actually quite polite about the way she questioned my sanity. I believe it was something like, "Oh my. Really?" The subtext being -- "Are you nuts?" But I have to say I learned quite a lot during this exercise. I wanted to learn about painting moving water -- never dreaming that long before I got to the painting of it, I would be running the top half of my work under a faucet and scrubbing it with a sponge to lighten things up and start over. So I guess you could say it's a moving water exercise in every sense of the word!