What does it mean when you see the thread title and the author and you go... "uhh, another cool scape" before you see any image ?
Looks great now, in 3 weeks it will be all filled in. Maybe move a little the left front rock and the other rock on the right (just under the diffuser) because they are too near the glas.
Why did you use so much substrate (relatively) ? Wanted to change the ratio ?