I collected pieces of used pictures, dyed and stitched them together in a certain pattern.
Something like that. ;-)
A most recent picture was found, grabbed and cut from the Banto Zazenkai video in the travel diary thread.
Wrote a small 'bash'/'wget' shell script, that walked slowly through the member list, collecting the 762 Sangha avatars. No choosing/picking was done, although there are some plain white or graphic images.
Used different algorithms, that sort/match/align with different parameter sets, adjusting color and brightness of the Sangha pictures automatically while processing.
Some hundred iterations later, the posted combination appeared, weighting aesthetics and effects in a certain way. Looking close at the screen, Sangha appeared, 2-3 meters away, it's more Jundo.
Gassho,
Kotei sattoday.