Very good piece of junk, Pil! The detail is really high, and it is a really nice scenery for a postapoc scenery!
Just a suggestion for the mould making: i read on your blog that you spent a long time filling all the holes. Well, don't. You may just put the silicon, and when it is vulcanized (long waintings happen sometimes) just take it off. Probably some parts of the original master will fall off, and some pieces of silicon will be cutted. Well, ignore them.
After the silicon mould is separated, just use some nail scissors to remove the "anti-holes", i mean the thin stuff that are the positive corrispective of the holes. It works hundreds times better than any filler!!!