How do they take these pics? Which camera do they use? Which edit? Any editing formulas?

How do they take these pics? Which camera do they use? Which edit? Any editing formulas?
With background darkened and skin is also darkened, Have they used flash?
With background darkened and skin is also darkened, Have they used flash?
How do they take these pics? Which camera do they use? Which edit? Any editing formulas?
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