Got some dimension on the last piece and then swaddled it in overgrowth. This piece had the most chipping where the joint compound flaked off the styrofoam, so rather than try to patch it, I buried it. I wanted to do something that looked more like a bunker, so higher in general with a worn path to the entry and a rear drainage ditch that will probably get painted something toxic.
The scatter library needs another large piece of terrain, as well as raised ground and climbable crap with cover, so checks a lot of boxes. I slashed the corners off some foam board to keep the angles variable and went with corrugated fencing to contain the sculptamold. It’s fairly thick in places; probably best to give it 36-48 hours to dry.