By definition art is "<span>the expression or application of human creative skill and imagination, typically in a visual form such as painting or sculpture, producing works to be appreciated primarily for their beauty or emotional power." I consider art to be a human's way of letting their true intentions and feeling come out in a visual or audio form. </span>
Answer:
Circulism: Used to shade a base layer on the hand to give it a consistent base texture.
Contour Shading: Used to shade stretched skin.
Hatching: Used to shade nails and stretched skin.
Cross Hatching: Used to create patterns in the skin and to emphasize deep valleys/crevices.
Thomas Edison's invention of the motion pictures became a powerful way to communicate ideas and emotions.