Hi, hope you don't mind if I tackle this one, although here on the main thread I cannot give you any visuals, those would be reserved for the image thread.
BG most definitely has a shadow, though very faint.
The photo is a still taken from video and when I reproduced the exact same scenario, I found that my daughter's shadow was very faint to what it was to my eye in real life.
Check this gif out on the image thread and watch the bottom right corner
http://www.websleuths.com/forums/sh...erty-German-14-Delphi&p=13380972#post13380972Watch the gif closely and you will see it, it's there. That time of year shadows are longer and skinnier so the shadow you see is mostly of his legs in the frame we have (body shadow off the frame) so they can be mistaken for the rail ties.
HTH.
ETA: I have posted a photo from the above mentioned experiment I did so you can compare if you wish. Image thread:
http://www.websleuths.com/forums/sh...erty-German-14-Delphi&p=13409152#post13409152