When I first heard about Mitsuru Nikaido‘s LEGO mecha walrus, I pictured a cyberpunk Beatles nightmare. But when I looked at how well-built and detailed it was, I was only impressed.
What really sells this as a mecha walrus are the green eyes. They give off a ghostly computer-like glow that is creepy and makes the rest of the build look metallic. The tubing also helps, but without the eyes, I would have thought it was just a LEGO Technic-style sea mammal.
The skin even looks like armor plating! Well done, Mitsuru!