Ambient light was provided by a parking lot light.
Spot light with red gel to highlight the window.
Popped my strobe with blue gel filter on the
tree branches and leaves.
From experimentation, it seems that a 60 second exposure
at f5.6, ISO 200 is about right for ambient light created
by a street light.
This is great, Alvin. Very interesting.
fabulous image thumbs up!!!