Modeling and concept art by Jeremy Vickery. (I deviated from the original concept a bit) Rendered with 3Delight.
I rendered this image while testing my Renderman shaders.
I've written the Light shaders, and custom illuminance loops that use message passing to allow more control from the lights.
Techniques used are a bit old school.
The image is rendered with only spotlights and no Raytacing. Multiplier of the specular size on the light shader and shadow maps that spread based on the distance between the shadow casting and shadow receivng objects allow for facking the glossy reflections.
Also the light shaders account (to some extent) to color temperature concepts outlined in Jeremy Vickery's Gnomon workshop DVD