A very quick update on the other walls I bought from Tiger Terrain
You can buy this set to complete a walled paddock, including an open gate. I just glued them onto some MDF and added fine sand. Then just flocked and static grassed everything. I used the excellent rubbing a balloon trick to get the static grass to stand up once I had sprinkled it onto diluted PVA glue. I have all the eBay bits to make my own static grass applicator but have not got around to it quite yet.
The walls are great, very finely cast with great detail. I will be getting more of these for sure from Stephan at Tiger Terrain. I am hoping he expands his 20mm range to do some more stuff. I still have a small ruined cottage to paint from him, but it would be good to see some more buildings in this scale.