Dickens does a great job with descriptions throughout the novel, but I feel like chapter 6 has some really amazing imagery.
"A minute ago, the boy [Oliver] had looked the quiet, mild, dejected creature that harsh treatment had made him. But his spirit was roused at last; the cruel insult to his dead mother had set his blood on fire. His breast heaved; his attitude erect; his eye bright and vivid; his whole person changed, as he stood glaring over the cowardly tormentor who now lay crouching at his feet; and defied him with an energy he had never known before" (page 41-42). This paragraph creates a really strong mental image for the reader, it also contrasts Oliver's usually composure to his anger. The effect is much stronger than if Dickens had said,"he was angry". "...Set his blood on fire" gives a better image alone. Dickens and his editor also seems to have a deep understanding of grammar...so many semicolons...