'Smooth white sheet of snow upon the roof, dirtier snow upon the floor'
E - White snow = upper class, life is easy for them, they are untouched and looking down on the poor.
Dirtier snow = lower class, constantly kicked about, trampled on and looked down upon by upper class
E - Eventually all snow melts and has the same ending. Suggests that it doesn't matter whether we are white snow or dirty snow, we all end the same. Perhaps this is Dickens message? We should all help eachother whilst we are different, before we all end the same
Cratchit family - Presents the struggles their class is facing
Scrooge - Criticizing his way of life. He must change, else his end is near
Supernatural - they are the ones that show scrooge that the divide is pointless