G6/Die Beule (spelling?) based too; notice the clean bulge area in the smoke stain, & the wheels & oil cooler differences.
Although I'd say Ost Front due to the housing aswell as the KG52 badge and , as there's windmills in Holland, Denmark, Belgium, well anywhere in (mostly around Central & Northern) Europe, where there's agriculture and no locally water/electric/motor powered grain mills (or water pumps)...