Re-scape advice

[Afkomjorgen]

Re scaping a 5 yr old tank.
1/2 new sand and some new rocks.
It’s always been a wall of rubble so I’m not looking for anything crazy, but any recommendations on moving things or adding to?
I am not super in love with the shaped rock in the middle right, but it’s got some encrusted corals on it so it’s gotta go in there somewhere

Thanks

 

[lapin]

Use the rule of 3's. 3 shapes of different heights and dont for get you are working in 3D