I was thinking if you pulled some of your red stems towards the foreground and making a "street" per say between your balyxa you could really add some pop to that area, then again you would have to move your tonias somewhere else or lessen their amount. (those are tonias right? I'm terrible at stem IDs)
I like it. I like the bare foreground. To me that seems to add a ton of depth vs. a planted foreground. Nice work on the back corner I need to show the wifey this when she gets home. We're working on plans for a 180g. Yours will be an example!!! kudos!