The object here was to learn how to do shadows so that the reflected light from the object you are painting, which would be the same color as the object, shows in the shadows. The trick is, you paint the object; then while it is still wet, you put in the shadow, leaving a very thin white line between the object and the shadow to keep the colors separate. Then, at several points along the edge of the object, you just touch the object with the shadow, and the color from the object bleeds into the shadow and combines to give you the feel of reflected color in your shadow. I did these on sketchpad paper, because I thought they were just drawing warm-ups, so the bleed isn't as smooth and pretty as it would be on good watercolor paper, but you can still see how that works.
More later, but it's way too hot to scan or write or use the computer right now! 106 outside, probably 90 indoors. Sheesh.