What should be checked first after completing the shading?

Correct answer: The light direction and relationship of light and dark values

The governing concept of a final shading review is consistency with the chosen light source. First check whether the highlights, middle tones, and shadows agree with one light direction and whether the large value groups are balanced. Option A is correct because this check affects the object’s form and realism. A signature may be added later, while pencil length and paper price do not determine the quality of the shading.