After discovering 1mm height 15mm washers, I decided to rebase all my civilians on 15mm bases. All military figures will remain on 18mm washers. Here is a group shot of 6 civilians from different manufacturers.

Two identical Laserburn civilians and sheep herder from Irregular Miniatures.

Soviet nurse from Plastic Soldier Company, GZG female colonist and Laserburn female civilian.

15mm Fallout Vault Dweller

Just painted the only 15mm GZG Colonist figure I have (bought it on sale with huge bag of other minis) as Vault Dweller from Fallout universe :)