Not the greatest shots but you can get the idea from them
There is a valley through the middle of the tank and two dominant structures to either side. The left has a large cave under it and the right has a high arch and a bit of a cove feature. The water will flow in a counter clockwise direction when looking at the tank from the front. High energy from the lower left and top right (moving left). The lower energy will be the lower right hand side of the tank and the sand. I really wanted to add more rock to "join" the structures a little more but I keep telling myself "no, the corals will do that in time!"
Left
Right
From the right viewing pane
