The people below are not getting shaded by or seeing the vegetation tho? If you need shade you can just use the canvas without the plant life and all the other stuff needed to sustain it up there. Actually if this system is intended for narrow streets like this it seems completely unnecessary as the buildings already shade the street. Otherwise if you want plant shade use trees or malleable plants like wines instead of inventing ways to put plants in places they aren’t meant to be.
Wishing for a god of War collection or something of the sort worth the older games