TITLE:

TITLE:
Kawayu Onsen Swimming Back View

IDENTITY LOCK:
None.

STYLE:
Ultra-realistic photorealism.
Authentic handheld iPhone 16 Pro photography.
Casual Instagram-style travel photo.
Natural HDR with minimal retouching.
Authentic skin texture.

SUBJECT:
Beautiful adult Japanese woman in her early 20s.
Long dark brown hair tied in a loose low bun with soft see-through bangs.
Large dark brown eyes.
Natural makeup.
Healthy fair skin.

BODY:
Slender feminine hourglass figure.
Slim waist.
Natural feminine curves.
Realistic anatomy.
Visible natural shoulder blades and subtle spine line.

OUTFIT:
Her entire back from shoulders to waist remains naturally uncovered.

SCENE / ENVIRONMENT:
Outdoor riverside hot spring inspired by Kawayu Onsen, Japan.
Clear natural hot-spring water beside a flowing mountain river.
Forested mountains, large river rocks, and traditional Japanese inns in the background.
Subtle hot-spring steam.

POSE / EXPRESSION:
Actively swimming slowly forward through the hot spring, away from the camera.
Her body is nearly horizontal in the water, with her legs extended naturally behind her.
Both arms are gently pulling through the water, creating visible ripples and small splashes around her body.
Her back faces the camera while she turns her head naturally over one shoulder to look back.
Warm, cheerful smile.

CAMERA:
Horizontal 4:3 composition.
Camera positioned behind her at water level, following her swimming direction.
Medium-wide framing.
Natural smartphone perspective.

LIGHTING:
Soft natural daylight.

DETAILS:
Realistic water ripples and reflections.
Natural wet skin texture.
Calm Japanese onsen atmosphere.

NEGATIVE / CONSTRAINTS:
No CGI.
No illustration.
No anime.
No plastic skin.
No nudity.
No transparent swimwear.
No exaggerated body proportions.
No malformed anatomy or extra limbs.
No text or watermark.