This is a piece of self-propelled artillery made. It was orginally going to be a tank, but half-way through, i changed my mind. I don't have any tracks, so i used 6 enormous wheels from set 7471(mars rover model) which i got cheap for £20. It has a crew of four- the gunner sits in the turret, the captain and secondary gunner sit in the main body, and the driver sits in his own compartment at the front. It is armed with an large 300mm gun, and duel forward 20mm cannons. It's only drawback is that it can't fire on the move.
The pictures are a bit dark and out-of-focus, which makes it a bit hard to fully appreciate your masterpiece. I think I really like the gun, but it is a bit hard to see it properly. Overall a very good design - keep it up. Lee.