I have 4 major structures in the tank. It’s 6 feet wide. So you’d suggest adding some smaller ones, maybe in front of the main scape? I was planning on having a roundish rock in the sand, for a zoa garden, and maybe a pillar to (hopefully) have some anemones that won’t move elsewhere.I'm going to go with @ZombieEngineer with this one. I'll also add my own $.02.
That scape looks awesome. I would absolutely keep it as is. But you may need more hidey holes for the fish while the corals grow in. The beauty of your scape is that you still have plenty of real-estate in the substrate to add little caves and swim-throughs.
And that's kind of where I'm going with this. While the structure looks awesome, you may find yourself limited to the types/amount of coral you can add. You'll have to leave room between corals in order to allow them to grow into those amazing colonies we all want. Adding a few smaller structures to that awesome scape might make the fish happier, while giving you more real-estate for corals. Kind of gives a sense of depth to the tank too.
Just a thought.