One of the things I want in there is a bust of Sir Isaac Newton, which I picked up in England in May. It's a 35 mm tall, solid, heavy white metal piece, sold unfinished, by Phoenix Miniatures:
I want to finish it to look like warm marble, like this 1710 bas relief of the great mathematician:
This is with two thin coats of off white artist's acrylic paint -- thin because I don't want to destroy all the detail in this piece. This photograph of the statue has turned out too yellow because I took it at night, but the colour is actually pretty close to my reference photo.
I'll have a look at it again in the morning light, add another coat, if necessary, maybe do a gentle wash of a darker colour into the detail, and add a tiny amount of subtle veining on the base and back, where there are larger areas of "uncarved marble".