Your top Air Defenses are rather exposed against loons. The loons[Or even a hog squad] only have a couple steps to get to them, and all those steps are right next to each other, so the travel time isn't as big a deal, especially if there's a rage spell used. Your base is VERY symmetrical, which makes it very easy to Lavaloon, since you know EXACTLY how everything will path. Your Double Giant Bomb spot, while the pathing between structures itself isn't bad. You're going to miss at least half the hogs due to the split they'd do just before reaching the archer tower that leads them into it, and they'll know exactly where they are, since the quad tesla is VERY commonly see where you have yours.
with your current base design if you are attacked from the bottom everything will funnel directly to your th. The base design is a free 2 stars for sure. A well placed hound will keep your sweeper distracted from the north side which is very weak to air attacks. I would suggest heavy modifications to the base or a whole new design.