How does Hunter S. Thompson use imagery in The Curse of Lono?

Imagery:

"I have already secured the compound: two homes with a 50-meter pool on the edge of the sea on Alli Drive in Kona, where the sun always shines." —Front matter, pg. 13

"From where I was sitting I could see that the arm he was trying to hide from the stewardess was bright blue, all the way up to the shoulder." —The Blue Arm, pg. 17

"It was raining—a light, warm rain, but steady enough to keep the streets wet, so we could stand on the curb and hear every footfall on the pavement as the runners came by." —The Doomed Generation, pg. 68