The degree of light or dark in artwork

Oliver is out on location for a photo shoot. he prefers working with natural light. he has, however, realized that direct light is falling on the subject. how can oliver soften the natural light?

Anyone have a site they can give me so i can get some drawings tutorials?

Why were staff lines an important improvement to musical notation a. sl indicated rhythm b. sl indicated dynamics c. sl indicated pitch d. sl indicated meter