Is the reflection in the mirror you now or is it the past? Observers over the light

  Observers over the light ⚡

Yes, there will be a delay.  This is due to the construction of the mirror and you can count how much it will be.  The reflection that occurs on the surface covered with the aluminum layer is in principle instantaneous.  However, the mirrors in our homes are panes of glass 3 millimeters thick, with a reflective layer of aluminum on the back surface.  This means that the light reaching the observer must travel in the glass in two directions - which, assuming incidence perpendicular to the mirror, gives a distance of 6 millimeters.
The speed of light depends on the medium through which it travels.  In the air, it is about 300,000.  km / s and if the movement took place in this center, the time needed for the light to travel 6 millimeters would be 20 picoseconds (1ps = 10-12 s).  However, the movement takes place in the glass, in which the light moves one and a half times slower, because this is the refractive index of the glass.  The same distance at slower speeds results in a longer time - 30 picoseconds.
So this is your image from the past!  The same happens with mobile cameras and photos, photon!

[A photon is the fundamental particle of visible light.  Radio waves, infrared rays, visible light, ultraviolet rays, X rays, and gamma rays are made up of photons, each containing a certain amount of energy, which depends on the wavelength.  ...]
Can we  take a picture of the photon itself?
Not.  Taking a photo of a photon is physically impossible.
Yes, we need photons to take pictures, and we need photons for goodbye.  The photon is an information carrier.  It carries the information that the camera needs to create an image of an object.
Some objects reflect light which allows us to see / photograph them (objects) and some objects emit light which allows us to see / photograph them.  There is a difference between detecting something and perceiving something.  Detection is mechanical.  Perception requires awareness.

We do not "see" the light.  We "feel" it.  Light has to hit us physically to be detected.  Objects that we "see" do not have to physically touch us.  When our eyes "feel" the light, this is only the first phase of "seeing".