Establishing the walk, shot 1

subject_definitions:
<Subject 1> is the young woman in <Picture 2>, in her early twenties, with long thick copper-orange curly hair falling well past her shoulders, pale freckled skin, blue-grey eyes and a slim build, wearing a plain cream short-sleeved crew-neck t-shirt, a long dark iron cross pendant on a thin dark chain, blue denim jeans, a wide tan leather belt with a brass buckle, a small tan leather belt pouch on her right hip, dark braided rope bracelets on both wrists and thin silver rings. Only her face, hair, body and clothing are taken from <Picture 2>; the snow, cliffs, green aurora and wooden sailing ship behind her in that image are not part of the target video.
<Subject 2> is the block of Market Street in San Francisco photographed from directly overhead in <Picture 1>: a broad straight avenue cutting diagonally between dense financial-district towers, sheer dark glass curtain-wall high-rises along the left side, a slim pale stone tower and a brick-and-terracotta building with an octagonal corner turret and a green copper cupola on the right, wide brick-red paved sidewalks, white-striped crosswalks at the intersection and a small sunken octagonal planter set into the brick paving. Only the street layout, building shapes, materials and colours are used; the overhead aerial viewpoint and map-like flattening of <Picture 1> are not retained, and the target video is filmed at street level.

summary:
[reference generation] The target video is the opening segment of one continuous front-tracking walk: <Subject 1> walks north-east along the Market Street block defined by <Subject 2> in a single unbroken eight-second take, the camera retreating ahead of her at exactly her walking pace as she comes off a crosswalk, looks up at the towers and settles into her stride.

retention_analysis:
<Subject 1> (appears in [Shot 1]): fully_preserved - her face, freckles, blue-grey eyes, long copper-orange curls, cream t-shirt, iron cross pendant, tan leather belt and belt pouch, denim jeans, braided rope bracelets and silver rings are retained exactly.
<Subject 2> (appears in [Shot 1]): partially_preserved - the street width and direction, the dark glass towers, the slim pale stone tower, the turreted brick building with its green copper cupola, the brick-red paving, the crosswalk stripes and the sunken octagonal planter are retained; the overhead aerial viewpoint is replaced by a street-level camera at chest height.

detailed_description:
The target video is photorealistic live-action in a naturalistic documentary-cinematic style, filmed on a stabilised gimbal with a 35mm-equivalent lens held at chest height, in clear late-afternoon San Francisco light, with no on-screen text and no subtitles anywhere.
[Shot 1] The camera sits in front of <Subject 1> and faces back toward her, executing one continuous tracking shot backwards at exactly her walking speed, so her size and her position in the frame stay constant for the whole eight seconds; she is centred and framed from mid-thigh up, and there is no cut at any point. <Subject 1>, the young woman with long thick copper-orange curls, pale freckled skin, a cream crew-neck t-shirt, the long dark iron cross pendant, a wide tan leather belt with a small tan pouch on her right hip and blue denim jeans, walks directly toward the lens along the brick-red paving of <Subject 2>. She has just stepped off a white-striped crosswalk, and over the first two seconds her stride settles from the slightly quicker crossing pace into an even, unhurried walk, her arms swinging loosely and her rope bracelets shifting on her wrists. The low late-afternoon sun sits behind her and slightly to her left, far up the avenue, so it rims her curls and shoulders in warm orange light and throws her long shadow forward past the camera; the lens faces into that light and carries a soft, gentle flare across the upper frame, while her face stays readable in cool bounced light from the pale stone tower opposite. Behind her the avenue of <Subject 2> recedes in a deep perspective of dark glass curtain-wall towers, and the brick-and-terracotta building with its octagonal turret and green copper cupola stands to her right, its upper floors catching the last direct sun. Around the four-second mark her hair blows across her face in a gust off the street and she lifts her right hand to sweep it back behind her ear, tilting her chin up to look past the camera at the tops of the buildings. Her copper curls bounce with each step. Other pedestrians in coats and work clothes cross the frame in soft focus at the edges, walking the other way; a city bus and slow traffic move behind her in the roadway, and the small sunken octagonal planter passes at the right edge of frame. In the last second she lowers her gaze back to the lens, the corner of her mouth lifting slightly, and keeps walking at the same steady pace with her left foot forward, the shot ending mid-stride with nothing changed in the framing.

overall_soundscape:
Steady open-air city ambience fills the whole segment: distant traffic on the avenue, a bus pulling away, the layered murmur of passing pedestrians and a faint wind moving between the towers. Her footsteps fall in an even, unhurried rhythm on the brick paving throughout, with the light rustle of denim and fabric close to the microphone.

non_diegetic_music:
N/A