Scape with the idea in your head of how you want your corals to grow into the space. A cool scape looks awesome but will look totally different with corals all over it so keep that in mind. AS someone else asked what are you trying to keep in this tank? Doing a carboard mock up of ur tank and building scape in there can really help you see what its gonna look like. For reference here is my original scape i ended up removing some of higher up rocks. So now and then picks hopefully this helps gives you some ideas.
Perhaps....PerhapsBased on the timeframe that you posted, perhaps a few alcoholic beverages into the scape?
one thing throwing me off is the support on the arch looks unnatural (to me) when i make arches i try to not make them real steep like that
i can post a picture of my most recent one if you’d like fit reference