For once, I don't have much to write. The last stage was just to add some more weathering and fire damage to the building. The colours were black, raw umber, burnt umber, mid-grey and dark grey, and the techniques were a mixture of washes and drybrushing.
Here are some shots of the interior. My apologies for the shoddy pictures. The UK winter was long and my phone camera performs badly under poor light.
I weathered the roof flashing and walls, then added some flock to the base. Here are some shots of the exterior: