The subject of this group build is to take a model off your shelf that's been sitting there unfinished and finish it.
To start post photos of your model(s) in it's current state with a quick blurb of what version you were building and why it ended up abandoned. Then blog and post photos of you finishing it!
Extra kudos the older it is.
Is the concrete painted or just very dark? I ask because I don't know if they painted over raw concrete, unless, of course, they were doing camouflages. I'd lighten the concrete a little to show age, but leave a painted surface as is... if that makes any sense. Amazing stuff. Don't forget any motor bike tracks you'd see behind the vehicle.