The rivers and streams are complete now.
I finished off the flocking and then glued patch clumps of Woodland scenics foliage on the banks, as well as a few 2mm houses to give it a sense of scale. I thought about adding more types of flock but I didn't want it to to look too busy.
Also I started on some roads. This is just coloured caulk smeared onto the same plastic sheet and then lightly textured with a brush. I watered down the caulk slightly to make it smooth out better. These are all going to be straight roads and I plan to cut them up and give each strip a dry brush.