It really depends on what type of coral you plan on keeping. If I were to do anything, I would remove the little rocks in the front, and maybe pick up one or two smaller rocks to change the height on one side so it isn't straight across. That being said, if you covered the entire thing with SPS, it would like nice regardless
I think it looks really good and gives you lots of room for grow out. For what its worth I wouldn't put star polyps on your main rock structure as they can grow out of control, best put them on their own small rock separate from everything so you can better keep them under control.