autumn night sky with starfall over calm lake. concept of tranquil nature, nighttime serenity, cosmic wonder, and

autumn night sky starfall lake tranquility nature serenity cosmic wonder reflection peaceful moon stars nightfall landscape water calmness twilight scenic seasonal tree foliage orange silhouette horizon celestial evening glow illumination beauty outdoor atmosphere universe quiet stillness scene ambiance dusk lighting panorama mystic magic calm concept nighttime digital art illustration ai generated