Flames Of War Panzer

Trying my hand at a Flames of War Panzer - these are on the same scale as a 15mm soldier. The tank is pretty cool, but I didnt do much with it. Hard to tell from the pic, but the treads and tops of wheels are painted a darker grey, and thats about it. Im gonna dirty it up, and put it on a base, but I dont know what else to paint on the tank. Its grey.