A digital painting of a mystical sunset casting a golden hue over a sprawling city intricately woven into the vast canopy of ancient trees. The city features rustic wooden structures with an enchanting blend of fantasy and medieval architecture. Suspended in the sky, a colossal magical crystal radiates beams of iridescent light, bathing the city and surrounding forest in a warm, mesmerizing glow. The scene evokes a sense of wonder and tranquility, with creatures darting between the branches and distant mountains framing the horizon, complementing the enchanting atmosphere with a diverse color palette.