How does Ben Hamper use imagery in Rivethead: Tales from the Assembly Line?

Imagery:

"The noise was very close to intolerable. The heat was one complete bastard. Little wonder that the old man's socks always smelled like liverwurst bleached for a week in the desert sun."

"During the summer and fall of 1977, the truck plant was hummin' six days a week, nine hours per shift. All of this overtime added up to one gorgeous stream of income."