Do skin mites reproduce on human face during night?
Yes, it is true that these mites exist on healthy human skin, on >98% of people, no matter the country or hygiene.

However, I'm sorry to say that this photograph is not the follicle mite Demodex folliculorum. This image has been widely circulated around the internet as Demodex, but it is actually the head of a silkworm, Bombyx mori. The above version has been modified slightly from the original, but you can see the original here: https://www.sciencephoto.com/media/720736/view/silkworm-head-sem

And here is a zoomed out version of a silkworm: https://macrocritters.wordpress.com/2012/11/26/photographing-down-the-food-web-silkworms-bombyx-mori/

You can find a real close-up of Demodex here: https://www.sciencesource.com/archive/Demodex-folliculorum-(SEM)-SS2367855.html