Mid-Century Modern Chair Test

Remember those days when you had to answer the question: "Which one of these does not belong?"

In the above picture I've represented that theme in this small collage with some artistic objects.

Just one more creative thing you can do with art photography and a little photoshop.

P.S. I made these images black and white so they'd look more similar to each other.

Do you know which one doesn't belong in the picture?