We could relate this story to Snow White because in this strory the witch wants to kill Snow White like Enlil wants to kill all humans and turn them into clay
"How is it that one man has has saved himself." (page 74)
When the witch finds out that she is still alive she gets really mad as Enlil does:
"He spoke in anger to the gathered gods" (page 74)
I can also relate Enlil's thoughts to the saying "an eye for an eye" because he said:
"The punishment should always fit the crime" (page 74)
In Snow White the witch also want to be the prettiest and youngest one forever just as Gilgamesh wants to live forever. He goes in search of a plant that will make him young: "How-the-old-man-once-again-becomes-a-young-man" (page 79).
I can also relate what's happening to a movie called "Knowing" were the world is going to end and only a girl and a boy are chosen to continue living and continue with man kind. In this case, Ushnapishtim is chosen to live.
In my opinion Ushnapishtm shouldn't be awarded eternal life. Wasn't he already granted being the only one(with his family) to have lived? I think surviving the flood were everyone died was a big reward already.
In this book the serpent is also a representation of the bad like in the Bible. In this book, a serpent steels the plant and leaves Gilgamesh with nothing. "In the reeds nearby a serpent of the place [...] and stole away with it among the reeds" (pages 80 and 81)
