The 1/35th scale wall is made from Evergreen stock. The topography is
a combination of pre-mixed grout, craft sand, pastel shading, Woodland
Scenics stuff and some dried plants from the yard. The space craft and
alien are from the 1/32nd scale Pegasus kit: Alpha Centauri U.F.O.'s.
I detailed the wrecked front-end of the space ship with some extra
bits from the spares box.