A mystical twilight descends over a fantasy Celtic kingdom, where towering ancient trees and lush, vibrant green grasses blanket the landscape. Wildflowers of every hue spring from the earth, weaving through the undergrowth and hinting at the magic alive within. The kingdom is shrouded in a rich, mysterious dusk, with the sunset casting deep, enchanting shadows across timeless stone structures covered in moss. The scene feels both eternal and ethereal, as if whispered legends of old could burst forth from the land itself.