The way anything "looks on a camera" is not even a remotely good approximation of how it will look to a person (a driver).

Firstly, exposure settings on the camera can essentially turn night into day, and make a barely visible taillight look like a spaceship-destroying laser gun. Secondly, camera flash, being a very compact source of strong light located very close to the lens, will exaggerate the apparent effectiveness of reflectors far beyond anything that will happen in real-life situation.

Your pictures are good for illustrating the layout of your reflective setup. They are not in any way representative of its effectiveness.