Unexpected look back of innocent girl in dim room

mobile phone photo, old CCD camera aesthetic, harsh flash, grainy, dim messy indoor lighting, candid snapshot feeling, slight motion blur", young Korean female idol, soft innocent look", mid-action, slightly turning head toward camera as if just noticed being photographed, shoulders slightly raised", eyes widened slightly, lips parted in surprise, shy and caught-off-guard expression", loose soft homewear (thin cardigan + inner top), slightly slipping off one shoulder but not revealing", unprepared, intimate, accidental moment, evokes curiosity and protectiveness"， 9:16"