Tank looks nice. That piece of wood looks very interesting. I might have to go trudging for some soon in the creek. What's that green stuff that appears to be growing on it (algae or lichen)? Might want to consider a low growing plant to cover some of that empty space up. It'll contrast nicely w/that piece of wood, and doesn't make the area so barren.
There's more space to display the tank and I've noticed that a lot of the red is gone. It actually makes the tank flow quite a bit better. Can't wait to see what it looks like when it fills in a bit more.