green wall to cells

[diki]

I'm making some changes to the topographic surface and I'd like to enrich it with the green walls to cells or to invertible gravity, I shaped a solid and applied a texture and a surface pattern, but I'm not very satisfied with it. I want to try to create the various solidi3d maybe in a parametric family I've been thinking about it for a while but for now I don't know how to start... .

 

[gfrank]

to have a 3d design it is necessary to apply to the wall of the "empty" to create the "hole", through the use of a family of "empty" on a wall host.
to put on the "green" and the soil, I see it hard....