Some think we each have a guardian angel while others think we don't have an assigned guardian angel, while yet others think God at times - but not always and not by assignment to each of us - sends an angel on a mission of guarding. The Bible's evidence that each of us has a specific, assigned guardian angel is not as solid as some think, so I'm with those who think sometimes God sends guardian angels but that we don't have a specific guardian angel.
It is not reasonable that art should win the place of honor over our great and powerful mother Nature. We have so overloaded the beauty and richness of her works by our inventions that we have quite smothered her.