In fact, it's not even a photo of a blob of paint. It's a colored-pencil drawing. CJ Hendry: I just kind of sit here and doodle around and just draw a little bit. Narrator: That's CJ Hendry.

Whether drawing realistic or abstract subjects, an understanding of tone, the variations of light and shade, is important. A variety of pencils are required to create a tonal study. The B range is ...