SYOA - Hogwarts Express Train - Happy Dance

I have just completed the Hogwarts Express Train.  There was no back stitching instructions on the chart Stewart created.  I had to put them where I thought they should be.  I followed what some other stitchers did and I also added some extra lines myself.  I will leave it for now and look at it for awhile to see if I need to add anymore back stitching.  Some stitchers have added smoke I’m not sure if I will or not.  If anyone has any suggestions, let me know.  As I’m typing this I realized I forgot to add the 5972 number of the train.  I will add that tomorrow.