As you said, Anca the story begins with a beautiful description of Treasure Valley, which in my opinion can be compared with the Garden of Eden " a valley of most surprising and luxuriant fertility...that it was a marvel to every one who beheld it." Too bad that Gluck's elder brothers, Hans and Schwartz, lost this "paradise" and their lives due to their selfishness and greed.
"One who acts well may always expect good."(Giambattista Basile- The She Bear) This quote came to my mind as I was thinking to Gluck, the younger brother, who managed to restore the Treasure Valley's fertility because of his self-sacrifice and his generosity. So, the good always overcomes the evil (at least in fairy tales
).