运动轨迹光绘肖像

Create a fine-art chronophotography portrait in which the figure described in the user request is composed entirely of luminous motion trails. Trace their signature movement sequence as continuous glowing bands of light that overlap and coalesce until they read as the figure itself: let one sweeping arc weave the skull, another curve define the cheekbone or jaw, the sweep of the arms shape the shoulders, and imply stillness only through negative space where no trail passes. Set everything against pure, complete darkness with no external light sources, so the bioluminescent-like filaments are the only illumination, rendered with high contrast and a faint glow bloom along each band. Finish with the material character of a blackened gelatin-silver print: faint chemical residue, slight motion blur, fine analog grain, like a nineteenth-century motion-study photograph reborn as a kinetic sculpture concept. Keep the composition centered and monumental with generous dark space around the figure, in crisp 8k fine-art quality. Do not render solid silhouettes, still opaque body parts, visible studio lights, text, or watermarks. User request: a ballerina tracing a grand jeté with sweeping arm arcs