Neon Crowned Fashion Portrait

Create a glamorous studio fashion portrait of a seated young woman wearing an ornate sparkling crystal crown and a {argument name="dress color" default="black"} satin slip mini dress with thin spaghetti straps and a deep V neckline. She has {argument name="hair color" default="straight black"} shoulder-length hair, smooth skin, and a poised pageant-queen posture, one hand lightly touching her hair near her shoulder while one leg is raised and crossed in the foreground. Use dramatic neon gel lighting: magenta and violet light across her body and dress, with a teal-green circular spotlight halo behind her head on a deep purple studio background. The composition is vertical, waist-to-thigh fashion editorial framing, high contrast, glossy satin texture, jeweled crown highlights, cinematic low-key lighting, shallow shadows, modern luxury mood. Add a small white four-point sparkle/star icon near the bottom-right corner. Photorealistic, polished, magazine cover aesthetic, no text.