2d To 3d Challenge

Hola People, the point of this challenge is this:
2d artists give a sketch, a concept and then the 3d artists bring it to life with woteva software they use.
Will be waiting for the first 2d drawing/sketch.
The drawing should be well detailed to make work easier for 3d artists, it could range from buildings, weapons, gadgets, characters etc, woteva comes to mind. SO FIRE ON,