Cinematic Western Cowgirl on Rearing White Horse

Subject:
A cowgirl on a white horse running through the desert.

Person/Expression:
A {argument name="age" default="early 20s"} woman. Long brown hair with thin bangs, tips flowing naturally in the wind. Translucent skin, natural Japanese-style makeup, pale rose complexion, clear eyes. The expression is slightly defiant, with her gaze directed toward the front-left of the screen. A Western cowgirl atmosphere that retains sweetness while showing strength.

Clothing/Pose:
A {argument name="hat" default="brown cowboy hat"}, a white to ivory Western shirt lightly opened at the chest and tied at the waist. A simple black bikini top inside. Blue distressed denim shorts, a decorative brown leather belt, and long brown cowboy boots. Riding a beautiful white Thoroughbred-style horse that is rearing up powerfully on its hind legs. The person's left hand stabilizes her body near the reins, and her right arm is extended straight toward the upper-left of the screen, holding a classic revolver. Hips are firmly in the saddle, one foot is in the stirrup, and her clothes and hair are swaying lightly in the wind.

Background/Light:
A dry {argument name="background" default="desert"} like the American West. The foreground has sand, pebbles, low grass, and thin dust rising. Dry shrubs are scattered in the midground, with reddish-brown rocky mountains and mesas spreading horizontally in the background. The sky is a vivid blue with a few white clouds. Strong midday sunlight shines from the upper-right of the screen, creating bright highlights on the white horse's neck, the person's face, shoulders, shirt, and denim. Shadows fall toward the lower-left, with reflected light in the ground dust.

Composition/Camera:
Vertical 9:16. A dynamic composition with the horse and person placed large in the center, and the white horse's head and forelegs extending to the top. The person is positioned to be visible on the left side of the horse, with her upper body and extended arm breaking into the sky. A slightly low-angle perspective emphasizes the horse's power and the expanse of the sky. A near full-body composition including the horse's hind legs, tail, and dust. Focus is on the person's face, the white horse's head, and the leather harness, with the background rocky mountains slightly softened.

Texture/Style:
Realistic fashion photo style. Naturally expresses high-definition skin texture, the white horse's coat, leather saddle and reins, denim wear, and thin wrinkles in the shirt. Saturation is bright, with clear tones where the blue sky, white horse, and reddish-brown desert stand out. Not over-processed, but a natural 3D feel and gloss like an outdoor location photo.

Negative:
Unnatural faces or gazes, extra fingers, missing fingers, fusion of hands and feet, broken joints, incorrect number of horse legs, poor contact with harnesses, person floating from the saddle, distorted shapes of guns or reins, unnatural gravity, shadows inconsistent with light sources, excessive skin correction, plastic-like skin, background text, logos, watermarks, UI, unnecessary people.

主題：
砂漠を駆ける白馬のカウガール

人物・表情：
{argument name="年齢" default="20代前"}女性。長めのブラウンヘアに薄い前髪、風で毛先が自然に流れている。透明感のある肌、ナチュラルな日系メイク、淡いローズ系の血色、澄んだ瞳。表情は少し挑むようで、視線は画面左前方へ向ける。甘さを残しつつ、強さのある西部カウガールの雰囲気。

服装・ポーズ：
{argument name="ハット" default="ブラウンのカウボーイハット"}、白〜アイボリーのウエスタンシャツを胸元で軽く開き、裾をウエストで結ぶ。内側は黒のシンプルなビキニトップ。ブルーのダメージデニムショートパンツ、装飾入りのブラウンレザーベルト、ロング丈のブラウンカウボーイブーツ。白いサラブレッド風の美しい馬に騎乗し、馬は後ろ脚で力強く立ち上がっている。人物の左手は手綱付近で体を安定させ、右腕は画面左上へまっすぐ伸ばし、クラシックなリボルバーを構える。腰は鞍にしっかり乗せ、片脚は鐙にかけ、服と髪が風で軽く揺れている。

背景・光：
アメリカ西部風の乾いた{argument name="背景" default="砂漠"}。手前は砂と小石、低い草、舞い上がる薄い砂埃。中景に乾いた灌木が点在し、奥には赤茶色の岩山とメサが横に広がる。空は鮮やかな青で、白い雲が少しだけ流れている。昼の強い太陽光が画面右上から差し、白馬の首、人物の顔、肩、シャツ、デニムに明るいハイライトを作る。影は画面左下へ落ち、地面の砂埃には反射光が入る。

構図・カメラ：
縦長9:16。馬と人物を画面中央に大きく配置し、白馬の頭と前脚が上部に伸びるダイナミックな構図。人物は馬の左側に見える位置で、上半身と伸ばした腕が空に抜ける。ややローアングルの視点で、馬の迫力と空の広さを強調する。全身に近い構図で、馬の後ろ脚、尾、砂埃まで入れる。焦点は人物の顔、白馬の頭、革の馬具に合わせ、背景の岩山は少し柔らかくぼかす。

質感・スタイル：
リアルなファッションフォト風。高精細な肌の質感、白馬の毛並み、革の鞍と手綱、デニムの擦れ、シャツの薄い皺を自然に表現する。彩度は明るく、青空と白馬、赤茶色の砂漠が映えるクリアな色調。過度な加工ではなく、屋外ロケ写真のような自然な立体感と光沢。

ネガティブ：
不自然な顔や視線、余分な指、欠けた指、手足の融合、関節の破綻、馬の脚の本数の誤り、馬具との接触不良、人物が鞍から浮く、拳銃や手綱の形の崩れ、不自然な重力、光源と矛盾する影、過度な美肌補正、プラスチックのような肌、背景の文字、ロゴ、透かし、UI、不要な人物。