How does Harlan Coben use imagery in Gone for Good?

Imagery:

"The cell reeked of urine and vomit and that sour-vodka smell when a drunk sweats, it was still a step up from the aroma of flight-attendant cologne."

"We tiptoe around upstairs, you know, like we're living on ice and we're afraid the floor is going to crack and we're all going to fall down into that basement."