Piscis Metallicum has a very Steampunk inspired feel to it. Each cog needed to have some interaction with the body of the fish. In my mind the mouth parts work and the canvas fins actually help to propel the fish through the water. But cogs need power so the lightning conductors drive electrical power deep into the heart of the workings.
I built the fish from scratch in Photoshop using many metallic finishes, cogs, screw heads and metal plates all of which I obtained from Adobe Stock.