Geometry of Glass using Light and Shadow

I had this vignette setup of stacked glasses on a 4 ft x 6 ft mirror the previous night in my photo studio (AKA: Dining room table). I couldn't get the lighting right as I don't have studio lights of any type, so I gave up.

The next morning as I went to put everything away, the sunlight from the window struck the corner bezel of the mirror. I immediately placed a sheet of white cardstock for the background. Within 2 minutes the lighting has completely changed.

Wait... and the light can happen.

Canon R5 w/70-200mm f/2.8
f/5 - 1/40 - ISO 50 - 104mm