I first searched the Internet using Google for images of Lighthouses in Russia and used one that was built in the Baltic.
So the design was decided upon I then messed around with the Dust buildings to create the rough outline. I then glued the plastic pieces together and cut a piece of 3mm MDF to base the building upon. I added extra sections using 3mm MDF but the hardest part was the octagonal tower.
Unsightly joins were covered up with cardboard stripes (shown in white above).
Removable MDF roofs were covered in cheap corrugated cardboard (above).
First base coat on the two variants (above and below).