How does Janet Evanovich use imagery in Four to Score?

Imagery:

"Living in Trenton in July is like living inside a big pizza oven. Hot, airless, aromatic."

"Neither of those felt exactly right for the day, so I took myself into the kitchen to see if I could find my identity in the refrigerator. I was plowing through a Sara Lee frozen cheesecake when the phone rang."

"I looked over at Morelli. His features were softened by shadow, but even in the dark I could see the paper-thin scar that sliced through his right eyebrow. A few years ago, Morelli had walked into a knife. And he'd probably walk into another. Maybe a bullet. Not a comforting thought."