INCIDENT LIGHT versus BACK LIGHT (2)

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What does better? What is more impressive?
Perhaps it is an academic or even stupid question since these are the two sides of the same coin. :-)).

Excuse me for writing in English. Swabians can't speak High German. *gg*

Canon, Canon EOS R7, RF100-500mm F4.5-7.1 L IS USM, 500.0 mm, 11, 1/320, 320