I enjoyed your annotated version very much. Thanks for sharing!

As far as the stacked vs. non-stacked image, I say there's only a slight difference - the darker areas are more pronounced, but not necessarily sharper than the non-stacked image (at least how it looks on my PC). Both are good though.

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Sunset

Die Sonne scheidet hinter dem Gebirge. In alle Täler steigt der Abend nieder
mit seinen Schatten, die voll Kühlung sind.