Original Wasgij Puzzle

"Strictly Can’t Dance" is the title of this fantastic 1,000-piece puzzle.
Shows everyone's favorite talent show "Vaguely Gone Prancing."
The image printed on the front of the box depicts a talent show in progress.
But something caught some people's attention, while everyone was trying to have fun and watch the entertainment.
What could be happening to get this surprised reaction from everyone?
Try to imagine that you are the judge falling out of his chair and piece together what he can see.
The finished puzzle measures approximately 68x49 cm.