The brightest subject is the flames, the flame twirler would have been quite dark, during the exposure if a flash was triggered to light the twirler, that would imprint the 'still' twirler.
"It is one thing to make a picture of what a person looks like, it is another thing to make a portrait of who they are" - Paul Caponigro
Constructive Critique of my photographs is always appreciated
Nikon, etc! RICK My Photography