How does Chinua Achebe use imagery in Civil Peace?

Example of Imagery:

This newest miracle was his little house in Ogui Overside. Indeed nothing puzzles God! Only two houses away a huge concrete edifice some wealth contractor had put up just before the war was a mountain of rubble. And here was Jonathan's little zinc house of no regrets built with mud blocks quite intact! Of course the doors and windows were missing and five sheets off the roof. But what of that? And anyhow he had returned to Enugu early enough to pick up bits of old zinc and wood and soggy sheets of cardboard lying around the neighborhood before thousands more came out of their forest holes looking for the same things.