The sentence from "Broken Chain" which contains the most descriptive language is the following one:
“At four he decided to get it over with and started walking to Sandra’s house, trudging slowly, as if he were waist-deep in water.”
It is the most descriptive language because there is even a figure of speech: as if he were waist-deep in water (a comparison). The author took the liberty to use such a linguistic resource so the idea and feeling could be better gotten across.