Signal box progress

I haven't actually done anything to this since Sunday evening. This sort of photo, that comes out on screen several times larger than the actual model, really helps me identify what else I have to do. In this case I really need to improve the definition of some of the engineer's bricks.

It also suggests I ought to consider adding a more detailed interior. But then the question arises of how authentic I want the model to be. I think there should be 2 black point levers, 2 blue facing point lock levers, and 3 red and 2 yellow signal levers but I really don't know enough about real world signalling to be sure