Bend forward and You need them to be able to move so your hair will separate and move when you mermaid flip it.
Now your photographer has two options for getting the perfect shot
Option A: Set the camera to video and record, later selecting the frame with the best shot.
Option B: If your camera has the option to take multiple photos simply by holding down the picture taking a button, you can do that.
The whip. Tell you, the photographer, to start filming/snapping. Now whip your hair up with force, using the strength of your upper body, not your neck. Try to get to a perfectly straight standing position and freeze.
This is shot with single Speed Light hitting from 45 degrees upwards and
Post Processing is Done in Lightroom using hair and Lip color.