Can you list the materials used to make this so others can copy your work?
Also you seem to have drilled holes in the top of the sleepers to fit the Poly into? Or is there a steel rod hammered in for the poly to fit over?
Where did you get the clips?
What size rod is used?
How did you dill the holes in the sleepers? What size drill bit and drill bit length was used?
Where did you get the geotextile used?