Long Exposure
To create a light painting you want to move the shutter time to "time" turn on your light hold the picture button half way down wait for a little click let it go then turn off the light do your drawing then hold the camera button all the way down and wait for you're picture to process.
To accomplish this photo slow the camera down to 2 seconds in between shutters and have the subject flap their arms.
Shutter speed set to 2 have 1 subject in the middle standing still and the others around it moving nonstop
hold the water down and take a simple picture.
Pan while the subject is moving