Great looking tank! - But why so much substrate?
Here's a layout drawing i made for your tank, sorry for the horrible quality! What about something like this?:
I think the right side looks AWESOME, but the left side needs a bit of work IMO. Try moving the amazon sword over to the left side, as shown in the picture, and fill the left side with a bunch of plants to give it that "full" look that you have on the right side. Then maybe add a ground cover plant in the middle, to produce a "stream" look. Just an idea.
Edit: Just noticed that there was no amazon sword in your latest photo LOL. Did you get rid of it? Hope my picture gives you some ideas anyway!