If it is not "Photoshopped", why is there a window standing in front of a window behind Harry Britton and Charlie Chaplin? The shadows there don't look correct, either.
Shadow on Napoleon III falls forward on the step, shadow for Tsar Alexander should fall on the column behind him similar to Bat's shadow on Butch, Wyatt does not cast a shadow on the column he is "leaning" against.
I like the photo anyway, tho.
JM2C
Waddison