I started this with the intention of doing a pen and ink drawing, then over-painting with watercolor. That idea lasted through the first session, and you can see evidence of this beginning in a couple sections. During the second session, I laid in the sky and distant background. Last Tuesday I worked on the rocks on the middle and lower right, and I started indicating the flow of the water.
If you're interested in technique, you can see where I've used coarse table salt in the rocks on the lower right. It gives some interesting texture, though I'll probably paint over some of it. It would look too odd to have it only in that one section of the painting.
Keep watching this blog, and you'll see how the painting develops.