A photorealistic depiction of an Astral Inca ancient city suspended amidst ethereal clouds, showcasing a detailed matte painting with vibrant, deep colors. The scene captures a fantasy world with intricate architectural details, complemented by a vivid color palette reminiscent of a fantasy concept art masterpiece. The city appears as a gothic marvel, with luminescent structures that reflect an ancient, mystical elegance, all presented in stunning 8k resolution for an immersive visual experience.