How is this girl standing in concrete?

White pink, gold blue, all these optical illusions have taken over the Internet. Whether its a dress or a sneaker or in this case, a girl buried waist deep in concrete, your mind and your eyes will have trouble distinguishing what's what. In this case, she's not buried at all. Not even a little bit. If you look at the little girl's shadow under her arm, you will see that it's up by her arm. That's because it's being cast on a wall that just happens to be the same shade as the grey walkway she's on, creating the effect that she's waist deep in concrete.