The serpent was base-coated with Citadel Orkhide Shade, then given a black wash. The scales were picked out with Citadel Gnarloc Green, and then the body was washed with Citadel Thraka Green. The scales were highlighted with Citadel Goblin Green, followed by an extreme highlight along the most prominent ridges on the head, jaws, and neck with Reaper Pale Green. The body was then glazed with very watered down Thraka Green, to knock back some of the harshness of the highlighting and smooth out the finish.
The robes were base-coated with Citadel Scab Red then washed with black. A mid tone layer of Citadel Mechrite Red was applied to all but the recesses of the robes, which were then highlighted by a 1:1 mix of Mechrite Red:Citadel Vomit Brown. The eyes, tongue, and fangs were painted in, and voila, a quick and easy paint job was complete.
The idea of an ancient civilization of snake people is a recurring theme in many fantasy role playing campaigns, as well as fantasy literature. Serpent people figured prominently in Chris Pramas's popular Lovecraftian-influenced D&D 3.0 adventure, Death in Freeport, and the snake-like Pantathians are common antagonists in Raymond Feist's Midkemia novels. Serpent people just keep cropping up, and as worn out as they idea may have become, I never tire of them.
In D&D the serpent people are presented as the Yuan-ti, but while traditional serpent people rely upon sorcery and super science, the Yuan-ti have been upscaled and depicted as heavily muscled warriors. I've got a real fondness for snake people of any ilk, and I have a number of Reaper 'Yuan-ti' miniatures, which I've painted in a variety of colours to represent species diversity:
But, as cool as these guys are, I'll always prefer the robed bipedal snakes of the Cthulhu mythos that scheme in secret, summon demons, and whip out ray-guns to dispatch interlopers.