The scenic board is now fully wired with working turnouts. Here is a short video - sorry about the long pause at the start.
I am particularly pleased with how well the loco traverses the single blade point near the start of the video. I had been a little worried about how well it would work. Here it is in close-up on the right of the photo. I did it this way to avoid awkward soldering. No one will notice the omission of one of the point blades from a typical viewing distance.
And here is the complete board. Just a shelf to add at the back now, like on the fiddle yard board.
I also need to add some uncoupling magnets. Then, the electrics will be more or less finished.