Deep Ocean Bioluminescent Siren Concept

Medium close-up of an otherworldly underwater female siren character, 20s, featuring iridescent pearlescent scales along her jawline and cheekbones, glowing cyan bioluminescent accents along her subtle collarbones, ethereal silver-white hair drifting softly in deep ocean currents, eyes glittering with soft sapphire light, adorned with handcrafted sea-glass jewelry and intricate delicate pearl chains woven into her hairline, submerged in deep pitch-black marine abyss, surrounded by tiny glowing plankton organisms and subtle floating particles, illuminated exclusively by her own radiant bioluminescence and soft blue underlighting bouncing off nearby dark volcanic rocks, mystical quiet expression, slight tilt of the head as she looks toward the frame, centered atmospheric composition, captured with an 85mm portrait prime lens, ultra-shallow depth of field creating smooth velvety dark background blur, hyper-detailed skin texture and water droplets, moody dark fantasy style, deep navy blue and vibrant electric turquoise palette, cinematic high-contrast lighting, haunting and beautiful tone.