If you say in the first chapter that there is a rifle hanging on the wall, in the second or third chapter it absolutely must go off. If it's not going to be fired, it shouldn't be hanging there.
Anton ChekhovWhen describing nature, a writer should seize upon small details, arranging them so that the reader will see an image in his mind after he closes his eyes. For instance: you will capture the truth of a moonlit night if you'll write that a gleam like starlight shone from the pieces of a broken bottle, and then the dark, plump shadow of a dog or wolf appeared. You will bring life to nature only if you don't shrink from similes that liken its activities to those of humankind.
Anton Chekhov