Simple continuous lines
The broad curve of the brickwork leads from the bottom right-hand corner towards the two figures.
I used the second curtain sync setting on my Speedlite flash and a remote trigger to create the curves of light from the Wii remote. I then had to hold the remote still before the shutter closed so that it wasn’t blurred.
This image shows the lights of a fairground ride as it was rotating. The long exposure enabled me to capture curves of light.