I like the look of your tank. I have a 10g as well, but i need to go in and re-aquascape my tank. I'm glad you said something about lighting being very important because most people don't think about it till later(like me). If anyone is interested in getting a good light for a 5-10g nano, I just bought the Aqua Medic Oceanlight 70w MH. This light has done wonders for my tank since I replaced the CSL 32w retro I had on it.
Another thing I have found that is very important is water movement. I noticed that you added an additional powerhead within the last pic or two. I just put a rio 180 in my tank to get the water flowing fast enough for my leather to get good water movement.