Y'know, maybe my eyes are trained to see Carto rendering with these three SEPARATE things (leisure=nature_reserve as boundary, natural=wood where they are, leisure=park if/as such manicured areas / "human sculpted land") exist, and maybe other eyeballs of other OSM contributors, less so.

But, I'm beginning to see these things evolve as Carto is rendering them and as @ZLima12 makes the changes.  While we are maybe in "later innings" of this "go team" effort, meaning we are not quite yet done, we certainly are now around TWO thumbs up at our shared progress.

Lookin' good, even if not (quite) yet done!