The War Machine

I designed this artwork from my concept based on AFV (armoured fighting vehicle) which is used for military purpose. I called it 'The War Machine'. The vehicle was design with thick armour plate and equipped with two Gatling guns from both side of the hood and a giant Gatling gun which was mounted on the turret which can rotate 360 degree. It also has six missile launchers four on top of the hood and two on the roof. I'd like critique on the overall appearance especially regarding the weapon arragement. This model was designed in Maya,texture with Photoshop and rendered with mental ray. Thanks