Mysterious indigo night sky, twinkling stars, celestial bodies, nebulae clouds, rich dark blue hues, luxurious velvet fabrics, metallic silver accents, glowing neon lights, futuristic cityscapes, sleek skyscrapers, avant-garde architecture, bold geometric patterns, vibrant purple undertones, iridescent sheens, holographic effects, deep space exploration, atmospheric mist, low-key dramatic lighting, cinematic composition, high-contrast color grading.