Its good to remember the rules of thirds, there is actually an article in coral magazine that address this and give a ton of tips for aquascaping, To me.. I dont really care for it, it seems just like a stacked bunch of rocks with a ton of dead space and no depth of field. it also might be to much rock, try a little more intricate forms specially with advantages of using rods and mortar. depending on size you will break a ton of rock trying to drill it (trust me i know) I order 160lbs of rock for my 115gal and used prob 100 after the breaking during drilling and odd pieces not fitting. look at full tank shots and see what you really love and take those pictures and combine them. Aquascaping is hard and not easy! its also good to remember what you want to keep, fish corals and all. bigger fish need room to swim to stay happy, lps and soft corals dont get along well with sps so you will have to keep them apart if thats what you plan to keep. im almost 98% positive this is not the answer you want to hear/read but its an honest answer based on my experiences. remember you dont have many chances to rescape once the tank is setup.. well you do... but its a big pain and the die off from pulling the rock is a big pain. again Aquascaping is very challenging when you take into consideration everything relies on it. it can really make or brake a tank.