This is a beautiful set up and I just wish I do something like this someday. I am a beginner in Aquascaping but enjoyed watching your tank set up...It is very relaxing to see the tank like yours... Indeed an inspiration for beginners like us.
Super nice looking tank and layout. Strong composition. Love the vertical pieces of wood jutting out of the water.
What are your water parameters? Never had any luck with getting the hairgrass to carpet in my tank. But I have pretty hard water and suspect that was the culprit.