Iridescent Light on a Natural Beauty: Over-the-Shoulder Portrait

Keep my appearance 1:1 as per the reference image; do not change my features or facial expressions. Ultra-close-up 1:1 beauty portrait: viewed from behind, over the shoulder, showing half of my face – one hazel-green eye, part of my lips, and a bare shoulder.
The body is turned away from me, the head is turned toward the camera; the gaze is direct from under slightly lowered eyelids, the lips are parted, and the shoulder is diagonally in a soft S-line.
Warm bronze skin, with a slight dewy glow and natural pores. Thick eyebrows, long eyelashes; nude lips with a satin finish. Hair is slightly damp, with separate strands on the temple and cheek.
The main effect is narrow iridescent streaks of light (amber → green → cyan → blue) from a low sunbeam through a prism, crossing the forehead, eyebrow, eye, cheek, and shoulder.  Soft shadows, medium-high contrast. Dark, smooth background, no objects.
Parameters: 85-105mm, f/1.8-2.2, ISO100-200, pupil focus; superb detailing of the iris, eyelashes, and skin microtexture. Nude makeup, minimal contouring, fine lines between lashes. Minimal editing, emphasis on the rainbow stripes, skin as natural as possible. Only one model per frame.