But you may wish to start with a very different objective—changing what you see to match a mental impression. That’s what I did here with a sketch of a rock formation drawn while sitting high on a cliff at Mohonk Preserve in New York.
What struck me about the formation was that it looked like an old man’s craggy face. In this case, I wasn’t interested in a literal interpretation. I wanted to exaggerate the forms just a bit to make my idea come across. Note the changes:1. Make face area larger, forehead area smaller.
2. Bring out chin.
3. Downplay peripheral areas of the scene and focus the strongest accents on eyes, nose and mouth.
4. Emphasize the the brow wrinkles and the creases on the bottom lip.
You could do the same idea with craggy roots or robot-like mechanical forms.
