One of my favorite creatures of folklore is the Chupacabra, an animal known for draining the blood of goats and other livestock. Builder Joss Woodyard has created a post-apocalyptic take on this cryptid with the Gamma Sucker. No doubt livestock is harder to come by in the wasteland, so this nuclear-powered techno-beast drinks the radiation from whatever it can.
The use of color here creates the sense of a mechanical creature that’s coursing with energy and life, despite its dirty and rusted frame. And I love the implied function of the “digestive system.” It’s so easy to imagine the absorbed radiation flowing through the trans-clear/lime hoses, into those processing tanks on the side, and then getting fed into the rear-mounted engine to drive those giant treads, which just push the monster forward in search of more radiation. It’s a vicious cycle, but a guy’s gotta eat.