majestic tree under starry night sky reflecting in tranquil water. concept of serenity, nature's beauty, cosmic

tree night sky water reflection stars serene nature beauty cosmic wonder peaceful solitude landscape tranquil majestic environment scene nighttime outdoors universe silhouette blue glow dreamlike vast space mystical stillness wilderness calm isolated horizon oasis branches leaves mountainous scenic picturesque dusk fantasy celestial starry reflecting concept serenity digital art illustration ai generated