A friend loves the Mayfair train games, so I'm painting up some miniatures for her. The "problem" is that these minis are small, yet have quite a bit of detail on them, and they're black. The other challenge, of course, is that each train belongs to a different player, so I need to distinguish the trains by four colors (red, blue, green, and not yellow). The last pic, for example, is actually blue, but can be mistaken for black. Thankfully, one of the trains I found pic in green, so I'm good there.
I know traditional 28mm miniatures highlight black from black to blue to white. Do the same principles of painting black on 28mm apply to 15mm, and how to I not obscure the detail on these trains (which the first pic doesn't show)?
EDIT: Added a reference pic of the last train playing piece for anyone who also is painting these miniatures...
EDIT EDIT: Updated train scale.
Thanks!














