Tolkien is a master of imagery and diction. Take this passage for example describing the Golden hall. The rich use of language and the excellent choice of words makes the scene come to life.
“The travellers entered. Inside it seemed dark and warm after the clear air upon the hill. The hall was long and wide and filled with shadows and half lights; mighty pillars upheld its lofty roof. But here and there bright sunbeams fell in glimmering shafts from the eastern windows, high under the deep eaves. Through the louver in the roof, above the thin wisps of issuing smoke, the sky showed pale and blue. As their eyes changed, the travellers perceived that the floor was paved with stones of many hues; branching runes and strange devices intertwined beneath their feet. They saw now that the pillars were richly carved, gleaming dully with gold and half-seen colours. Many woven cloths were hung upon the walls and over their wide spaces marched figures of ancient legend, some dim with years, some darkling in the shade. But upon one form the sunlight fell:a young man upon a white horse. He was blowing a great horn, and his yellow hair was flying in the wind. The horse’s head was lifted and its nostrils were wide and red as it neighed, smelling battle afar. Foaming water, green and white, rushed and curled about its knees.”
Upon entering the hall of King Theoden:Lord of the Rings