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This is saying " Artist use color penciles to give definition/intensity to a drawing/portrit. Its the art where there is a diffrnece of loght and dark shaes make it come together. Some artists create black and white charcoal drawings that imitate the photographs. This showes that old are is coming back in.
The modern art of photorealism is part of techniques
Answer & Explanation:
Remember if it is an article, read the text and just focus on "Sancho and Bolsa trying to follow William" there you will find your answer.