Well, my honest opinion is, I don't care for it to much. If I were to go with the minimalist approach in a tank the size as yours I would go with something like this
http://www.reefcentral.com/forums/showthread.php?t=1692183&page=33
Build your rocks up on a structure of some sort to give it some height so it wouldn't look so bare. That link is to Chings tank in Thiland, granted he has a big tank, but we are only talking about the rock work here. Two or three small structures in your tank would look real nice (they would look nice in anyones tank, lol) but I think you can see what I am talking about. JMO
The pics I want you to see are about 2/3 down the page.
http://www.reefcentral.com/forums/showthread.php?t=1692183&page=33
Build your rocks up on a structure of some sort to give it some height so it wouldn't look so bare. That link is to Chings tank in Thiland, granted he has a big tank, but we are only talking about the rock work here. Two or three small structures in your tank would look real nice (they would look nice in anyones tank, lol) but I think you can see what I am talking about. JMO
The pics I want you to see are about 2/3 down the page.