How does Neal Shusterman use imagery in Everlost?

Imagery:

"But on the way to the light, she hit something that sent her flying off course. She grabbed at it, it grunted, and for an instant she was aware that it was someone else she had bumped - someone about her size, and who smelled distinctly of chocolate."

"Now that she was accepted by the leader, the other kids kept stealing glimpses at her, like she was some sort of exotic creature."