The first story I came across was the little mermaid, a childhood favourite of mine and millions of other people. Disney, the great storytellers that they are made a beautiful 2D animated film of the classic story. The film is colourful and enjoyable to watch. Ariel is the youngest daughter of King Triton, She loves to sing and go to the surface to watch humans. After falling in love with a human prince Ariel makes a deal with the sea witch, in exchange for human legs Ariel gives the witch her beautiful voice and has 3 days to make the prince fall in love with her. The story has a happy ending, Ariel gets her voice back, marries the love of her life and the sea with is defeated.
In a different depiction of the little mermaid, which I believe to be the real version, In order for ariel to have legs she must feel like she is walking on razor blades, she bleeds with every step, the prince marries someone else and Ariel commits suicide. This version is much darker, perhaps a balance between both stories may be the way to go.