“One of them moved forward with a courteous smile, his hands crossed over his chest like a bishop. He must have been in his early fifties, and his build and spare hair lent him the air of a bird of prey. He had a penetrating gaze and gave off an aroma of fresh eau de cologne and mothballs.”
–Father Fernando Ramos in The Shadow of the Wind by Carlos Ruiz Zafon
This is a brief three sentence description of a minor character (I think; I haven’t finished the book yet). Ruiz Zafon descriptions are a strength. In the first sentence, Father Fernando Ramos sets himself apart from a group of priests by moving toward the characters; he also gestures in a way that invites comparison to others higher in the hierarchy. (Does this suggest he is ambitious?) The physical description continues in the second sentence and ends with another comparison, this one more dangerous. It also includes a rhyme and a pun. The third sentence includes another direct description and contrasting (perhaps funny?) sensory details.
In other words, Ramon is created in three sentences with a movement, context (the hierarchy and an attitude toward it), two sets of physical descriptions and comparisons, and a (non-visual) bit of sensory information.
Here is an attempt at something similar: The old man drew his bow slowly over the strings, letting the sound quiet the tavern like the gongs that called the town to prayer. He was at least seventy, spotty in his baldness, his face as blank and his fiddle as steady as stone. He exhaled loudly but slowly and sounded both tired and excited.
(“Tired” and “excited” are both too abstract, but it’s a start.)