Inspired by fStoppers community I did a shoot with our gorgeous model Anna, I used a ring LED light for the face with a reflector from down. and one LED light for the hair with a warm gel on it. Thanks to the iPhone's incredible sensor you can adjust the aperture and shutter speed by touching on the screen according to the light you are looking for. From there you can set up the exposure compensation by sliding up and down.
now just adjust your reflector and the output of your hair light.
this was done for my instagram page