The first image is the orlgine, and it has the like idea of the beauty with the hot springs. Then the sublimes being of the fog/clouds on the monthians. Now the true effect of the photos aren't fully there do the fact that photos from the time don't have great quality. It's very interesting to see how the hot spring has changed over a few years. How it has gone from being Sublime with nature the way it's the size has shrunk and has lost it's sublime.
It highlights that how things are have changed, it shows that the land changes and all you're left with are the beauty. It's part of a Geological Survey, about how hot springs evolve over time.