Snow Train

A little bit of snow and it all goes plop.
What I have tried to do here. (and not sure if it works that well) is show the snow on the outside and the inside of the train at the same time. You can see the luggage racks and interior lights as well as the freezing cold conditions outside.
I was on this train this morning sitting for an hour waiting for National Rail to stop building snowmen and start getting the trains running.