This is Arvid Schneider and Dušan Ković collaboration. Their task was to create an asset for Arnold GPU Presentation on Nvidia GPU Technology Conference (GTC).
Dušan’s task was to do the UVs and paint textures in Mari, but Arvid did scene setup, lighting and lookdev of the robot.
FInal render was rendered with the upcoming GPU version of Arnold.
More about the project in the Arvid’s tutorial: