One thing that will help it to picture the rock structure as a silhouette.
Its throws our eyes all over of place and that is what the human mind finds attractive. Make sure to incorporate all sorts of movement in your rocks. One thing that will help it to picture the rock structure as a silhouette. If it’s just this big round blob thats not that appealing then you should change it up.Think about how you want your rock to be shaped and do not go with what you bought. Buy some main pieces and some smaller or one to break up with a hammer and epoxy to adhere them together. I think that dry rock is great for this because you can take your sweet old time with no die off to worry about. Dry scape your rock till you are happy. If you do consider all live rock, then look at the rock and make sure it’s not filled up with a bunch of random colors try to find more solid colored rock filled with coraline algae or another plain solid color. It will make your scape look confusing and your coral will be hard to find in the overall scape. Make sure to take a lot of pictures in case you created a scape that you loved but tried something else then you forgot what it was and how it looked before! If you are uncertain of your scape you can always post the pictures on a forum and see what others think. Constructive criticism is a artists greatest tool. You get a chance to see things from other peoples views.