Windows within windows

Went for lunch with my Mum on Wednesday (I'm writing this on the Friday), who spotted what she thought would be a good Blip while I was looking for something decent (thought I'd have loads of opportunities but didn't work out that way).

I really like this one. It's a bit confusing at first, and a shame that there are a few cars in the reflection. I like how the reflection of the tree follows the curve of the inside window, too.