Still learning but this my favourite at the moment - mainly because I managed to get the "paint" (it's polished plastic) to shine for the camera. In previous shots of this (and other models painted in lighter shades) there was no surface reflection in the paint whatsoever. I managed this by sticking strips of black paper to the walls of my light box to represent the horizon. These are off-camera but create the darker reflections you see, eg. in the roof.