In 2016, Scottish artist Ewan McClure brilliantly captured himself painting his own portrait from the back of the canvas using his reflection in a mirror in front of him. McClure captured this amazing feat as a timelapsed by positioning a camera behind a two way mirror.
Mirror Technique – my new approach to painting a self portrait. Around 3 hours of trial-and-error for a loose but recognizable result. The camera was filming from behind a two-way mirror.