The difference between them lies in which syllables are stressed. In an iamb, the first syllable is unstressed and the second is stressed. ... In an anapest, the first two syllables are unstressed and the final syllable of the foot is stressed
The verbal irony here is “my windows commanded an unobstructed view of a lofty brick wall” This use of irony tells the reader that there was a perfect view of a brick wall from the windows
