What are Darry’s physical and personality traits?

Darry is Ponyboy's eldest brother, and the reader learns about Darry through the eyes of Ponyboy, the narrator of The Outsiders.
Darry is twenty years old, and Ponyboy explains that Darry's rigid personality and unfriendly manner is the result of having to grow up too fast. When the three Curtis boys, Ponyboy, Darry, and Sodapop, the middle brother, lost their parents in a car accident, Darry stepped in to look after the other boys and to become the head of the family. Darry's need to mature quickly turned him into a cold person, and Ponyboy is scared of him.
Ponyboy describes Darry as looking like their father, tall and muscular, but Darry's eyes set his looks apart from their dad's. They are cold and green-blue, and Ponyboy thinks that Darry would be good-looking if his eyes weren't so cold.