With working couplers between loco and tender finished, I finally wanted to see some colour on the side walls. First, the stakes were painted with carmine red acrylic paint, as were the handrails. That turned out to be a bit tricky, but a second coating provided an acceptable surface.
After all handrails looked nice and the paint was dried, the red areas were masked with tape. You have to work carefully and pay attention to apply enough pressure at the edges of the tape, in order to avoid fresh paint to seep into the gaps of the wood’s grain.