How does Cormac McCarthy use imagery in The Orchard Keeper?

Imagery:

"Whether he fell forward or whether the man pulled them over he did not know. They were lying in the road, the man with his face in the dirt and Sylder on top of him, motionless for the moment as resting lovers." (38)

"Deep hole between her neckcords, smokeblue. Laddered boneshapes under the paper skin like rows of welts descending into the bosom of her dress. Eyes lowered to her work, blink when she swallows like a toad's. Lids wrinkled like walnut hulls. Her grizzled hair gathered, tight, a helmet of zinc wire. Soft rocking, rocking. A looping drape of skirt slung in a curtain-fold down the side of the chair swept softly at the floor." (61)

"They passed in an enormous shudder of sound and the buses came, laborious in low gear, churning out balls of hazy blue smoke, their windows alive with streamers, pennants, placards, small faces. Long paper banners ran the length of the buses proclaiming for Christ in tall red letters, and for sobriety, offering to vote against the devil when and wherever he ran for office." (80-81)