Love your tank! The HC foreground looks fantastic (I'm still waiting for it to completely grow in my nano foreground...). How did you get the HC to stick to your driftwood? I like the look of the hairgrass in the background. As for your photos, I think that they look fine.
I like the look of the ADA substrate. Unfortunately, here in Canada, we don't have access to any of the ADA stuff.
Have you thought about adding a small school of fish in there (cardinal tetras, white cloud minnows)?