1st Picture

more rock, hide the heater

I agree on hiding the heater with the LR but you don't necessarily need more. Think long term here. Let that leather grow nice and big in that corner with those shrooms making a mat below and the zoas covering the rock in the background. Will look really nice and quite full. Same on the other side of the tank. Those corals will cover in due time and the xenia will most likely climb the walls to fill in even more. Should look good.

thanks for the replies, I'm letting the corals I have cover that tank, I'm starting up a 30 gal mantis tank and that'll keep me busy while I let this tank mature.