Gun Truck

Inspired by This Wikipedia Article on US supply convoys in Vietnam and, more recently, Iraq, arming and armouring trucks to protect convoys from ambush. This is a futuristic sci-fi version, based on some sort of heavy-duty mining vehicle. The vehicle was based on a pencil drawing, the backdrop is painted from scratch in Photoshop, something I don't do normally, but it seems to have come out OK.