I've been scuba diving tropical reefs for more than four decades. I'm also a marine aquarist. I've maintained reef aquaria for many years. Since I retired I've cut back to one 90 gal reef and a 220 fish and inverts mixed. My reef aquarium is lighted with a bank of t5s, and everything is pretty much state of the art. I collect my own specimens, especially fishes, in the US and in the Caribbean. I mention all this to indicate that I am very familiar with both aquarium keeping and diving the reefs.
It is very difficult to come up with something that looks like the reef in an aquarium. First of all there is infinite variety on the reefs, and they differ greatly acording to where they are, how deep they are, the type of adjacent land (coral rock or volcanic origin), and dozens of other factors. There is no such thing as a typical reef. Reefs are massive structures. If real authenticity is the goal, you would have to decide on what small reef section you were trying to replicate, and even then the best you could do would be a limited suggestion of reality, a thin reflection.
Your aquarium is very attractive, but it is clearly an aquarium. That is unavoidable. I've never seen a reef aquarium that is not immediately identifiable as an aquarium. The intense, thick, incredibly vibrant and dense variety of life found on reef sections, even just a small section of a wall, can't be replicated artificially because every small reef area is connected with all the surrounding sea and reef. In just one square foot you may find hundreds of species of tiny life forms. They are supported by the incomprehensibly vast ocean that passes over them, by the ecosystem that they are part of, by the endless variety of nutrition and chemical elements available to them that are needed to keep everything alive. Reefs are a wonder to behold, and the closer you look the more you will see, and the greater the realization that this cannot be duplicated, even in a huge public aquarium.
That said, it is still possible to bring a hint of the reef into an aquarium. It's not really possible to transplant a piece of the reef into an aquarium, but you can maintain and enjoy a few things emblematic of the reef. I think you have done that. I believe the best thing to do is to find arrangements that are sustainable and supportive of the living creatures you are keeping, and to attempt to find an aesthetic design that you find personaly pleasing.
The living reef is so wildly rich and varied and totally connected to the driving engines of sunlight and sea that they can exist only in the infinite oceans. Dead coral skeletons do not reflect the reality of a reef. They are not found that way in nature. Sections of coral that die are quickly colonized by living creatures. It's also unethical to participate in any activity that contributes to the decline of our terribly threatened and disappearing coral reefs. Enjoy your aquaria for what they are, arrange them for the benefit of the living creatures in them, and never forget the debt we owe to their magical source.