The right wizard tower maybe switched with the elixir storage next to it and the top seemingly has no defensive towers besides cc. Other than that great base... Oh and watch replays of 3 stars usually shows the weak spots in your defence.
I'd move the elixir (or gold) storage in the bottom compartment elsewhere to make it a bit harder to take them both. Also, use the higher lvl walls to protect the important, interior buildings. For some reason many people use the higher walls on the outside which makes no sense; a ground-based raider (excluding hogs) will use wall breakers to get through the outer layer; then the troops will have an easier time breaking through the weak walls than they would if it was the other way around.
I'd also point out that you rushed your walls, they'll be extremely annoying to upgrade with a large loot penalty, so max them before it's too late.
