I have turned to the color media after having taken your most helpful beginners drawing class this past year. I completed the tonel scale as you directed and it was very helpful. In fact, an eye opener. Now I see when using the above photo copy technique how valuable those tones are. But it surprised me to see, when working in color,(oils), that there are always at least three colors(tones)on every surface. A green leaf is rarely just green. The leaf has a light side, a dark side and at least one medium in between. The take away from your teaching for me was the single biggest boost to adding depth and dimension to my drawings and paintings. Thanks for sharing and thanks for caring. Warm Regards, Larry