So I took some 1P-LSD well over 90 minutes ago and was reading lyrics to bad religions gem called "progress" before coming here. Obviously I was dumbfounded by the genius and felt the need to see an interview with the face of the man behind it... Low and behold I'm not the only one who has taken one form of LSD or another.
The background is a reflective surface which is moving as a result of the wind. While the aperture setting keeps changing likely due to being set to auto and the natural light keeps changing - probably clouds.