If I were to use gray in a painting, what color would contrast it the most?

Witch of the fillowing are two eighth notes equal to

Where is the above note played on the guitar? open second string open third string second string, first fret third string, second fret

Which of these pieces best illustrates the use of variety over unity? leonardo da vinci, study of human proportion: the vitruvian man laylah ali's untitled louise lawler's pollock and tureen auguste rodin's the three shades?