Video is a close-up medium

The best musical description of "Charleston" is:

a. a waltz b. a two-step c. a syncopated grizzly bear d. a syncopated fox-trot

What element moves our eye toward the empty panel on the left of Ogata Korin’s Cranes?

a)  the directional force of the birds’ heads b)  the subordination in the color of the birds’ feathers c)  the contrast of the gold background color d)  the scale of the birds in relation to the height of the screen