Iwagumi Hardscape layout - need advice!

Hi am beginner to the aquascaping and I am trying to setup an iwagumi style tank. I have a 80x35x40 112 litres tank and I am trying to setup a 5 rock type aquascape.

This is my current setup:



which I am very inspired by this:




Also:

I picked my equipment very carefully, (CO2 supply, Tropical Aquasoil, Led light more than 8000 lumens) and I am thinking to use Cuba as a carpent plant but I am reading so...

Iwagumi Hardscape layout - need advice!