Lovely! Always a fan of DIY vs bought. Was the foam pre-embossed or did you do the carving yourself?
The foam card for the walls was kapa lined, so your required to peel off the surface and then create the texture yourself, which I did with a pencil. The lower roof is a mould and the tall roof is pre embossed plasticard.
The smaller building has strips of balsa wood stuck to the outer surface to help with the effect.