A mystical twilight descends over a fantastical, lush Celtic realm, where ancient stone structures peek through a vibrant tapestry of verdant grass and blossoming wildflowers. The horizon is awash with deep purples and fiery oranges, casting dramatic shadows across the overgrown landscape, while a gentle breeze whispers through the enchanted flora, telling tales of forgotten legends. The setting sun paints the scene with an ethereal glow, illuminating the intricate designs carved into aged stones and shimmering across the serene waters of a winding stream.