How does Chuck Palahniuk use imagery in Invisible Monsters?

Imagery:

"'When you realize the story you're telling is just words, when you can just crumble it up and throw your past in the trashcan,' Brandy says, 'then we'll figure out who you're going to be.'"

"The way my face is without a jaw, my throat just ends in sort of a hole with my tongue hanging out. Around the hole, the skin is all scar tissue: dark red lumps and shiny the way you'd look if you got the cherry pie in a pie eating contest. If I let my tongue hang down, you can see the roof of my mouth, pink and smooth as the inside of a crab's back, and hanging down around the roof is the white vertebrae horseshoe of the upper teeth I have left. There are times to wear a veil and there are not."