Satire on the art auction

Interior of a dark auction room with monstrous figures. The scene is illuminated by three candles on a trident, held by a figure with an ape's head. On a raised platform to the right, the auctioneer waves his hammer. Next to him, a figure with the head of a donkey holds up a painting. To the left, a figure with an ape's head holds a knife to an artist's throat. On the wall hang paintings, including those signed 'Ostard', 'Van Dyke', and 'Van Velde'. With an eight-line caption in English.