How does Sidney Sheldon use imagery in Master of the Game?

Imagery:

"Jamie was unable to sleep that night. He kept visualizing thirty-five miles of sand sprinkled with enormous diamonds belonging to Van der Merwe. He thought of the sea and the jagged reefs, the dogs hungry to kill, the guards and the land mines. He was not afraid of the danger; he was not afraid of dying. He was only afraid of dying before he repaid Salomon van der Merwe."

"Margaret stood staring after him in stunned bewilderment, and then slowly turned to look at herself in the mirror. The mirror told her that she had never looked as beautiful, but when she looked closer she could not recognize the eyes. They were the eyes of a stranger."