This is Rembrandt's Parable of the Rich Fool, a painting that made a lasting impression on me 50 years ago. Of course it's true that any painting by Rembrandt is frickin' fantastic. But to me, this one's in a class by itself.
First of all, it's a portrait; and a fine one at that. There is depth to the man's face, and you'd recognize him if he passed you on the street.
Then there's the background - his amassed riches. Everything, including individual pages, in splendid detail.
But it's the candlelight that lifts this painting to its lofty status. Everything it touches has to be re-shaded (re-lightened, actually) in gradients to maintain the painting's realism.
And what impressed me as a kid is/was the man's right hand. The book I was looking at half-century ago blew that small portion of the picture up many times to show the attention Rembrandt gave to it's detail. Light diffusing through skin. Renaissance Perfection.
