The Tank, Cruiser, Challenger (A30) was a British tank of World War 2. It mounted the 17 Pounder gun on the Cromwell chassis to add heavier anti-tank firepower to the cruiser tank units.
Having given the Challenger a white undercoat. The next stage was a base coat for the underneath of Humbrol Dark Green. This added shadow and depth to the main (top) base coat of Warpaint British Armour which was then sprayed on.
Here is the Challenger next to it’s little brother, the Cromwell IV.
See the full workbench feature on my Challenger A30.