Impossible Cog (Gear) Wheel - version 3

This is my latest rough pencil sketch of an impossible metal gear wheel. It's much beefier than the previous versions and I spent more time on the proportions and perspective to try and improve the accuracy. The font needs some more work - it's supposed to be engraved into the metal. Would very much like to create a hyper-real rendering of this image. Perhaps the backdrop could be inductrial, a surface with some gravel or metal swarf with some reflections of it in the metal teeth of the gear wheel.