This is The 28mm Messy Little Pigsty from Dampfpanzerwagon Guide No.1 - Building Wargame Terrain. It is one of two super-detailed or 'signature' models featured in Building Wargame Terrain and as such is one of the most in-depth articles covering a full twelve pages of the book.
The main construction is scrap cardboard with DAS modelling clay surface detail and some textured plastic card. The techniques shown in the book give a step-by-step tutorial on how you can produce a similar piece of terrain.
The article also details how I painted the model. While the two images below show the work-in-progress.
Should you be interested in buying the book - Building Wargame Terrain or Dampfpanzerwagon Guide No.2 - More Wargame Terrain, please follow the links in the top right of the main Blog page.
There are now only 20 signed and numbered copied of More Wargame Terrain left, while copies of the re-printed Building Wargame Terrain are running out fast.