8K ultra-realistic, deep crimson dark background, retro cinematic portrait color grading, warm golden highlights, cool teal-blue shadows, fine film grain, soft focus, atmospheric lighting, natural real skin texture, unified color palette, cinematic color grading, xiaomei, (masterpiece, best quality, ultra-detailed:1.5), 2x2 grid four independent shoulder-up portrait headshots on one single image, top-left: low angle upward shot, wet long wavy black hair, gazing up at camera with half-lidded eyes; top-right: side profile facing right, high ponytail with two loose stray strands on cheek, sharp cold expression; bottom-left: tilted head down, messy short bob hair, eyes glancing sideways with soft detached look; bottom-right: front-facing close-up, half-up half-down hair, calm neutral expression; all four portraits on deep crimson red background, matching warm Rembrandt side lighting, consistent fine film grain, soft focus, natural skin texture, no borders between panels
