Not sure if you are asking a structural question or a content related question. Content-wise and mood-wise, he tends to end them with the narrator alone, confused, bereft, or depressed. For example, in Ozymandias he writes: Nothing beside remains. Round the decayOf that colossal wreck, boundless and bareThe lone and level sands stretch far away.orSonnet: England in 1819Are Graves from which a glorious Phantom my burst to illumine our tempestuous day.