A Photorealistic Fan ready to render with Mental Ray.
The scene has 2 rendering layers, one with animation and motion blur and the is other static. The scene includes 14 different shaders. I included a HDRI image for the background. I used area lights to have soft shadows.
I did not use any textures for the scene, only custom shaders. Every element of the scene is separate, I did not combine meshes so you have more freedom to modify the fan.