good start! if i were you, i'd think about moving that central driftwood to the left or right by a couple inches, as it looks to be right in the center right now. Also, you may want to turn it so that it's diagonal rather than parallel with the front of the tank. Overall, i'd try to move things out of the corners by a couple inches or so, just trying to make it look more natural and less ordered. If you look through some of the tank journals, you'll see that many people post 5+ different hardscape pics in order to get opinion on what looks the best. Finally, you may like it if you slope the substrate a little bit, I had 2 29g tanks with completely flat substrate that looked alright, but after adding hills and valleys, it adds a completely new dimension to the tank... Good luck on the tank!