Giant egg forest emerging in ruined dystopian city

A massive Distopian post apocolyptic ruined city. There are ruines and destruction everywhere with just steel frames of skyscrapers everywhere. Smaller buildings are wrecked and rubble in the streets. There is a gian egg that has cracked open in the middle of the city. Inside the egg is a beautiful forest with beautiful skies and a river pouring out into the ruined city. There is a woman dressed in rags and she crying with her face in her hands at the sight of new life flowing out of the giant egg.