Cool.
And keeping decorations simple is very tempting for the maintenance part.
I kept adding and removing decorations for the first couple of years, but the ammount of wood has made some spots in my tank pretty hard to reach during gravelvacuuming.
Please take some more shots of your O's, for this is only teasing us a bit...
Are you gonna leave the tank with no background?
I didn't have a background on my first tank, but i got fed up with seeing the yellow wallpaper.
My wife made me a black cloth, which i hung behind the tank.
It made a huge difference and i liked that very much.