Under The Dinner Table

This was a mixed media (pen and ink, acrylic, wire, modeling paste) piece I did for a final art exam. I was given the theme "Betrayal and Chaos" and the words "They had been warned". If you look at this closely it is supposed to have a strong reference to a historical piece of art. Do you know which one!?

This piece was entered into a school board art show ... the entry card says it was done by a grade 9. I certainly hope no grade 9 makes art as twisted as this.