I have started work on the road over-bridge. I increased the height and built up the road surface with corrugated cardboard before starting on the brick faced front.
I have used 5mm foam underlay and carved each brick individually before painting it with a variety of different acrylic paints.
The brick overlay was glued in place with PVA glue and held in place with pins while the glue set.
Finally, we have the Fireless locomotive being tested on a section of scrap track - to make sure it all works.