The pic above shows the assembled model (stuck together with 'no more nails' and Evostick impact adhesive) waiting for a base coat of Citadel chaos black. The base, tank roofs and walkways have been covered in PVA glue and scattered with sharp sand.
The images below show the completed model. It is painted using a mix of Vallejo and Citadel paints and washes. The signs are actual pictures of warning signs copied off the internet, shrunk to size and printed.