While a very interesting, well constructed, and formidable design, there are too many round traps on it. A round trap is a spot on a tank, mech, or other combat vehicle that a projectile can gain purchase sufficient to allow the armour or other component to become compromised or destroyed beyond use by the action of that projectile. Examples of place where, say, a SABOT round can find its way in are under the main gun on a tank turret or under the turret overhang in the back of the turret. More deflecting features, like a round/curved shroud on major essential components, should be considered. This will, however, cover up your detail work.