This drawing exercise from Drawing from the Right Side of The Brain serves two purposes. First it demonstrates the power of light and shadow. Second, it shows that the brain of an audience is able to pick up light and shadow to form a whole and understand what the picture is about. So we should not worry unduly and over-correct our work (a common habit for beginners).
My task is to copy this picture upside down, and using only an eraser for most parts of the work.
These are the steps for the exercise.
Wow, no need skill one. Just follow. This exercise reinforces the book’s main learning point – draw what you see and not what you think you see.