Now as we all know capturing light is extremely hard! I took this photo myself and have picked up a few handy tricks! 1.) you need a pitch black room, no matter how much you cant see you need it to be really dark otherwise it won’t work 2.) use any light that you maybe have, i would suggest a light that is a colour, i used a small battery powered light used normally for room accessories 3.) move the light around, swishing it through the air to create the desired affect, then with your camera shot it 4.) i would suggest taking lots and lots of pictures, in order to get them few that are great!