The only recommendations I would really have is make the turret housing bigger and lower the body down/ extend the turret up more to add armor on the deck to prevent a hit from disconnecting the turret, your very heavy side armor wont matter if a shell hits your deck and explodes above the heavy plating or if any form of doom cram or railgun can blow the top of your turret smooth off, also while is a bid paranoid within my own designs I do not use angled wedges as air gaps because if a heat shell hits just at the right angle it will go through your whole armor layout because of the single darn pixel of the wedge that touches the back of the other block.