Aquascaping 24 gal

[Kryten]

Well I've started with the live rock in my new tank. Have about 19 pounds in there at the moment. Anyone have any aquascaping tips or suggestions? I know it comes down to personal preference, but at the same time there are probably techiques that tend to work out more asthetically pleasing than others. Also how much more lr would you add? The tank is about 29.5" long, 12.5" wide and 15" tall.

Thanks!