The apple she would be holding would represent the downfall of man, the negative side of the city, (crime, pollution, urbanization, etc.).
Its one of those things that sounds a lot better in my head, and a lot less corny, but it is an idea that i will come back to.
"My Children will live just to grow old,
But if I sit here and weep,
I will be thrown over by the slightest of breeze..."
- Laura Marling