imagine prompt: ultra - high - definition, advertising - style full - body shot of a mermaid with a gracefully posed figure. realistic and fantasy - infused. the mermaid has an exquisitely curvy and elegant physique. her face is bewitchingly beautiful, with large, vivid turquoise eyes, brimming with allure and mystery. her lips are full and a delicate rose - pink, glistening gently. long, flowing hair in a rich indigo hue cascades down, shimmering like satin under the soft light, as if reflecting the deep - sea's secrets. she dons a bejeweled, form - fitting bodice adorned with lustrous pearls and shimmering gemstones that catch and scatter the light. her mermaid tail is a masterpiece, covered in iridescent scales that transition from a pale, celestial blue at the base to a deep, royal purple at the tips. each scale is painstakingly detailed, glistening with an otherworldly sheen. the mermaid is gracefully posed, one hand gently touching her hair, the other extended towards the viewer, as if inviting them into her world. her tail curves in a fluid arc, accentuating her movement and grace. glowing particles float around her, creating a magical, almost ethereal effect. a soft, diffused light from above bathes her, enhancing the details of her features, the sheen of her scales, and the sparkle of her jewels. the background showcases an expansive, iridescent nebula that seems to pulse with a psychedelic glow, creating a magical and immersive atmosphere.