Lot's of what look like both real and fake plants are being put up everywhere near the entrance. There is a refurbished skylight up on the roof that provides a lot of natural light in this area. Stingray cove is also still not filled yet, I'm guessing they're working on the other aesthetics before starting on the cove to lessen the stress for the animals.
The Shark Tank, Lagoon, and Blue Hole all seem finished already according to the website with animals already in the exhibits. Stingray Cove and the Living Reef are still under construction.