Brugghen, Hendrick ter – Democritus, 1628 Rijksmuseum: part 3

The picture has something of this: people, man, portrait, knife, tattoo, nude, facial hair, shirtless, mustache, beard, son, weapon, festival, Renaissance, veil.
Perhaps it’s a close up of a painting of a man wearing a hat and holding a round object in one hand and pointing at something in the other hand.