Nailing down the hardscape should take awhile. It can be both exciting and frustrating at the same time. Patients wins. It should take a few attempts. If it doesn't you will end up doing it once the tank is filled. Alot of people like to rearrange their already setup tank(s) to get a different look so don't feel bad if you do. I am not one of those re-arrangers. I set it an forget it for the most part. My only mission at that point is to maintain and tweak only when necessary.
I have to agree with everyone else here. I like this last attempt better as well. It has asymmetric eyeflow.