In terms of painting composition refers to

Composition is the term used to describe the arrangement of the visual elements in a painting or other artwork. It is how the elements of art and design—line, shape, color, value, texture, form, and space—are organized or composed according to the principles of art and design—balance, contrast, emphasis, movement, pattern, rhythm, unity/variety—and other elements of composition, to give the painting structure and convey the intent of the artist.

the author develops a cold, and scared tone. making the reader shudder with fear, and suddenly become cold. i'm guessing that he's writing a scary novel, or maybe about a chilly december night.

c is a symbol. when bernice gets her hair cut, it is the authors way of showing the affects and demands of pier pressure and the over-all attitudes of people at the time.