Painted this guy rather quickly. I enjoyed doing the glow effects.
Black primer, VMC Oiled Steel and VAC Bright Brass for metal, white for glow, followed by VGC Yellow ink, then 2x Yellow + P3 Green Ink, then Green Ink. Then white + yellow again for the hot spots. Vallejo Old Rust and Rust for the rust effects, plus verdigris on the copper.
Base is cork (obviously) with gesso, black primer, then a generous helping of VGC Red Ink to let it seep into the cracks. Around the edges is green paint filled in with water effect.