A digital painting of a fantasy city nestled within towering trees, its medieval wooden buildings blending seamlessly with nature. At sunset, vibrant hues fill the sky, with beams of light radiating from a colossal crystal hovering in the air. This magical crystal bathes the city and surrounding forest in a warm, ethereal glow. The scene captures the enchanting interplay of light and nature, evoking a sense of wonder and tranquility.