These were created in Maya and these latest renders were examples of "in-line compositing" . . . meaning I rendered and composited the images within Maya's renderlayers options. The metal pic is me playing around with the chrome spec material over-ride. The glowing eyes were me playing around with having an additional render layer which was screened on top of the already multiplied occlusion. These took between 2-3 minutes to render on my Dual P4 Xeon.