<<Subject: Reflectors on back of van
Since I was out taking pictures just now, I thought I'd do two: one
without the flash, showing how our reflectors don't show up hardly at
all, and one with, simulating a car's headlights.>>

The white reflective stripes alone at the hieight you have them is
illegal in all 50.

If you had alternating red and white tape, this would be OK.

If you had the white alone up in the corners of the rear hatch, this
would be OK.

If you had put red reflective tape alone where you have the white, this
would have been OK too.

The white by itself is too high up onto the vehicle, which is a no-no.