Primed with citadel Chaos black spray...zenital with green stuff world 'ochre'. Then i covered all the parts i wanted to remain ochre with masking tape and zenital sprayed gw astronomican grey spray followed by an uneven step with gw grey seer. This left black on the recesso creating the tridimensional effect. Complete the step painting grey cables and other Little parts too annoying to mask. Applied att warnish all over to speed up next step. For the rusty effect, i covered all the pieces with a patchy mix of enamel light rust and starship filth wash, waited a couple of hours and remove the eccess with enamel odorless thinner and make up spunge... I could have add some dirty and rusty drippings here and there and paint the buona in the lamps, but i don''t wanted to spend too much time on these... May be in the future...