Composition is the way you arrange the visual elements in your piece. Kinda like organizing in a way.
Answer: Pigments
Explanation: Most pigments used in manufacturing and the visual arts are dry colorants, usually ground into a fine powder.
Answer:
Five segments equal to the size of the eye would go across a person's head. One on each side of the actual eye and one in the middle. The eyes go about halfway down the head.
Example (not my drawing btw):