Now for the detailing. Use surgical goves still... fingerprints are chrome's deadliest enemy.
I used acrylic paint, you could use enamels too. I mixed a black, a burnt sienna and burnt umber slush. Cinemaquette's T-800 was used for the guide. I applied a bit more of the black drippy weathering to the joints to simulate lube. Be fugal / careful with where you place any paint. Be specific. Acrylics have a film that once goes over the Alclad chrome, can ruin it's shininess, is hard to totally remove and will make the chrome flat. I placed thicker black paint in the holes on the head so that the red light will not shine through.
I painted the teeth with an off white paint mixed w a little bit of 'naples' yellow, so they aren't totally white but more natural looking.
I didn't use any sealer. I've done research and doesn't look like Alclad Chrome will stay shiny with any sealer.
Remove the tape/tac from the eyes. I also epoxied the mouth shut as he doesn't look right with a gaping mouth.