How does A. Craig Copetas use imagery in Metal Men: Marc Rich and the 10-billion-dollar Scam?

Imagery:

"We metal traders are jugglers without arms. . . ."

"The trades grew grander in style, richer in bounty, potentially deadlier in execution. When on the hunt, Rich was the consummate charmer."

"Rich treated his lawyers like bears dancing for their supper. The hearings were sloggy affairs designed by Rich to muddle, bedevil, flummox and take advantage of every legal loophole his cash could unearth."