'bout the legs, how about making them even bigger/ longer adn you can also add some cannons on them, kinda like on DOM Tropen or Xamel, and that brings me to another thing - the shoulder Cannon - how about making in similar to Xamel's one? I mean that it would be stored in a similar way when not in use (if You ever played any Armored Core game think of grenade launchers from it), or maybe YOu were thinking of something similar to Deepstriker?