I've painted them up to represent somewhere on the Eastern Front, with a few other bits of scenery I had laying about:
A shot of the rear:
A Russian anti-tank gun for scale. Like a lot of Airfix, it's a little on the smaller side for 20mm, and couldn't really go next to my Valiant Rapid Ruins in Normandy (which are a little larger for 20mm) hence, some scenery for my Slovaks, Germans and Russians to fight over!
I also have the Ruined workshop. I haven't put this based with the others, but it can stand on it's own.