I tend to agree that it's a bit much (rock that is). You have a gorgeous tank and stand and the only thing I see is rock. It draws your eye away from the rest of the setup. And I'm afraid that even once corals go in, the rockwork will be the dominant feature still. But it only matters what looks good to you. We all have our preferences and I prefer a more open look. This gives fish room to swim, corals room to grow (up and out), and a place for flow to keep detritus suspended in the water column. It just depends on what you are going for. If you are going for something unique / open, I would rethink and tinker with it a bit more. If you are going for the "rock wall" look, then the layout is fine.
You could (as Jacko mentioned) break apart some of the rock and create islands, caves, etc. But it's up to you. That is my honest assessment. Aquascaping is one of the most difficult things to get right. Just remember, you will be the one obsessing about it, not us.....lol.
Have fun with it though.