Winding Up a Firefly Before Dawn

Generate exactly one original cinematic anime illustration, portrait 3:4, text only with no reference pixels. On a dark apartment rooftop, an adult repairwoman in a mustard work jacket turns a giant winding key in the side of a friendly mechanical firefly. The insect is as large as a delivery van, with folded translucent wings, articulated copper legs and a frosted amber lantern abdomen. As she turns the key with both hands, the abdomen begins glowing and warm window lights wake in the building directly below it. Show her effort, the engaged key and the spreading illumination as one connected action. Midnight indigo city, low three-quarter camera, tactile painted metal, original design. No text, emblems, brands or watermark.