How does the author use imagery in the novel, The Violin Conspiracy?

Example of Imagery:

“The next few hours were a blur, and all that he could remember afterward was how he’d repeatedly opened and closed the violin case. Every time he was absolutely certain—absolutely convinced—that if he opened the case one more time, this time—this time—the violin would be there, glowing, its tiger stripes shimmering like flames: because how could it not be there?” (page 7)

“He tried to breathe but his ribs had been wrapped in piano wire. He tried to remain calm. He tried, very hard, not to cry.” (page 9)