What does the Ghost of Christmas Past look like?

The Ghost of Christmas Past looks like a mix between a young boy and a very old man surrounded by an aura of wisdom. He is described as having long white hair, a wrinkle-free face, and limbs that are long and strong. He wears a long tunic decorated with flowers and a glimmering belt. He holds green holly in his hand and is wearing a cap over his head from which rays of light appear.