"Your sputtering torchlight reveals a very unusual tunnel. Bright, brilliant colors can be seen everywhere, undimmed by the passage of time. The floor is a colorful mosaic of stone with a distinct winding path of red tiles snaking into the gloom beyond. No stonework can be seen on the walls or ceiling: some sort of plaster has been smoothed over the surfaces and upon it, painted scenes of animal-human hybrids going about their business. To your right, two jackal-headed figures appear to be holding a bronze chest. Beyond them, a painting of a barred door is manifest, with a horrid creature trapped within."
If your DM shows you this image, take my advice: run, do not walk, back the way you came, and never return. Welcome to the Tomb Of Horrors.
This illustration, another iconic piece of artwork by none other than David Trampier, again demonstrates what a genius he was.