This time it is the combination of space theme probably it is where we will be some years later. It is a lot of talks nowadays about the search for inhabitable planet just in case we need to leave our planet. I believe your Art could be a version of it. When living somewhere completely strange from our place we still will build a little copy of our atmosphere with vegetation, I believe this is what we will miss most our green planet with enormous water reservoir. No matter where human goes he takes something from motherland and we probably will take our plants :)