Best advice I can give you when you're doing your aquascape is to sketch it out first. And follow it in the process. You can have images in your head all you want but when you're looking down into the tank and placing those rocks, who images will be just a blur.
Also, stay off the glass! It's great for the flow to continue without obstruction and makes it much easier to clean. Don't cramp all the rocks you have in the tank. You don't have to. Place all the extra rocks in the sump or refugium if you need the extra filtration. An open aquascape will allow the fish to swim more freely and be less aggressive toward each other.
What kind of rock did you use for your aquascape?