the wood in your tank creates great drama for the scape be carefull not distract to much from it. Other than that I really can't wait to see it once that eleocharis foreground fills in, I think its really going to accent the mossy wood.
by distraction I mean don't take the focus to far away from the driftwood. Its really an interesting part of your tank and I think it would be easy for the plants to take away from the effect of the driftwood. do you see what I'm saying now?