Follow the heads. Counting clockwise from the "A", the fifth boy has his head right on top of the line. When you shift to position B, the bit of the head on the outside becomes part of a hand.
I wish there were an easy way to rotate the image back. I can use the inspector in dev tools and manually change the transform style that's applied, I suppose.
When I was an infant, I went to school one day and there was no free milk, "Maggie Thatcher, milk snatcher" had put a stop to that. I've always hated the woman, and now you've made her worse ...
https://en.wikipedia.org/wiki/Margaret_Thatcher#Education_Se...
* Previous Labour government had already cut school milk,
* The Tories didn't cut it for under 7s,
* Thatcher was a new education secretary at the time and she opposed the policy.