Dirk Bouts - The Fall Of The Damned
I thought that I'd posted this here awhile back but apparently not. This is one of my favorite paintings. If you look at the faces on some of the monkey like demons you'll see them staring back, briefly pausing the torment to hold a good pose for whoever might be watching. The oil on wood painting is titled "The Fall of the Damned" and is dated from 1450. You can read a small blurb about the artist here.
The following print by Peter Brueghel the Elder titled "The Damned" is a loose copy of the above painting.