Inside out

I am usually on the outside looking in when I make this kind of real drop-shadow graphic picture. This time I happened to be inside the shop, looking out.
Strangely enough, this is exactly what you get if you manipulate a digital image in something like Photoshop. "Flip horizontally" instantly changes the viewpoint. It’s a bit like how I imagine time travel, or teleportation, might work. I hope the inventors will remember to include an "Undo" option.