What's the meaning behind Yuzuru's photographs? A few scenes after the failed suicide attempt of Shouko, we see Yuzuru telling her mother something about the pictures she was taking and how she was trying to prevent Shouko from killing herself. Can someone explain that to me?
From to the wiki, 


  Her hobby is taking pictures of dead animals, with the intent of showing her sister how horrible death is. The purpose is to discourage her sister from killing herself.