a high-poly 4K 3D model of an alien inspired by classic Star Trek and 1950's sci-fi. The alien should be tall and slender, with shimmering iridescent skin that changes color based on emotion. It has an elongated head with large, expressive gemstone-like eyes and a wide, friendly grin. Include glowing antennae on top of its head and a sleek metallic outfit featuring retro-futuristic patterns. Its long limbs end in three-fingered hands, emphasizing its alien nature. Very realistic. Anatomical