Thanks to those following my step by step as stories on Facebook and Instagram! The motorbike is the recent @akinteractive.official cg125.
My apologies to my Chinese / Chinese speaking friends as I was pointed out that some of the characters written were completely off.
So with the help of a friend, I ripped them of and placed new posters.
May I remember the point : by the end of the 19th century,
the great Russian painter Vereshagin went in China – probably to spy. He did a handful of paintings, including that wall here. So the Diorama imagines the same wall 100 years later.