interesting... you planning to use co2 on this?
If not, I think an island style layout would work nicely with that wood. i.e. clean sand in the foreground, use the branch wood as a centerpiece with some smaller ryouh, instead of smooth river stones. some NLJF in the background and perhaps some anubias nana in the foreground, maybe some Mini pellia on the rocks... the wood is just the right size for that little tank, personally, I think i'd be a waste to ditch it in favor of an iwagumi.