The cobble stones are textured wallpaper, which at the time seened rather in fashion when it came to building terrain.
Its my biggest project when it comes to scratchbuilding terrain, hopefully it was worth the time and effort.
Patches of exposed stonework add to the overall look of what are almost plain looking walls in some respects.
Hopefully you've enjoyed looking at this just a fraction of how much enjoyment i got from building it.
Cheers for now Russ