Just found this site and thought it might be of some help. Great ideas on landscaping and building miniatures.....Again, it's more geared towards the 'gaming' world....but it has lots of useful ideas! ....using cut up cereal boxes as shingles, scoring pad used to make palm trees.....
While you're there, make sure you stop and look at the Elven Autumn House http://www.terragenesis.co.uk/infopages/page414.html
Or how about Topiary hedges....made from flocked plastic animals....http://www.terragenesis.co.uk/infopages/page288.html
Don't forget to look through all of it!
ok, ok.....go check it out! Lot's to learn!