My first attempt at photorealistic lighting via mental ray. The third image is just for fun, it kinda looks like clay!

Many of my settings [see following] were purely overkill, but since it is just one frame it didn't really matter. Had this been a multiple frame project, then yes I would've toned the settings down a bit.

Photometric Target Area Light
Light Type: Area + Targetted
Raytraced shadows
Color: D65White
Resulting Intensity: 40,000.0 cd

Mental Ray Renderer
Samples ppix Min: 16
Samples ppix Max: 256
Sampling type: Mitchell
Width: 4.0
Height: 4.0
Final Gather Samples: 512
Render Final Elements