sentences:  He described works he had seen at the National Gallery and Dulwich Picture Gallery with extraordinary verbal felicity.Although critics were slow to react and the reviews were mixed, many notable literary and artistic figures were impressed with the young man's work, including Charlotte Brontë and Elizabeth Gaskell.Suddenly Ruskin had found his métier, and in one leap helped redefine the genre of art criticism, mixing a discourse of polemic with aesthetics, scientific observation and ethics.