French artist Steeven Salvat has long been fascinated by the clarity and exactitude found in old biological studies. His portfolio is brimming with such renderings, usually with a modern twist such as this stunning series of decorative drawings on skateboard decks. For this new series titled Mechanical / Biological [Crustacean Study] , Salvat imagined intricate clockwork mechanisms that might animate the rigid exteriors of crabs, lobsters, and crayfish. The 10-piece collection was drawn entirely with a 0.13mm Rotring technical drawing pen, the process of which he captured in a video below.