Time for a central piece. I got the idea to make a sort of central plaza, with dais, benches, and a lot of covers- and look like infinity style. The openings are 40 mm, the dais are 25mm wide each one: You can place some objective at the center: Or a tree: Or you can remove the benches and add enough tree to make it a garden, icreasing the los blocking area and make the central zone impassable:
Maybe a nice robot food stand in the middle: https://www.thingiverse.com/thing:1645528 You can scale it to fit the available space.
