Here we have a pair of ancient post-apocalyptic refrigerators. Inspired by my 1970s childhood, I have painted one Puke Yellow and the other Bile Green. The weathering on the yellow fridge is more obvious in this photo.
I'm starting to get the hang of how to paint complex surfaces such as this. I now paint the deepest parts first, not worrying too much about spillover, then dry brush the raised surfaces. This seems to work fairly well.