Summer Windowside Lifestyle Portrait

Subject: Summer Windowside

Person/Expression: 
{argument name="age and gender" default="woman in her 20s"}. Natural and mature atmosphere, with a calm face showing no childishness. Medium-long {argument name="hair color" default="blackish brown"} hair, with airy bangs and slightly messy bunches. Transparent Japanese-style makeup, natural skin texture, pale flush, modest lashes, and pink-beige lips. Face is slightly tilted down, gaze is lowered, with an expression like a quiet exhale.

Clothing/Pose: 
Loose V-neck summer top made of thin {argument name="top color" default="white to ivory"} cotton. The collar is wide, providing a natural sense of openness around the shoulders and collarbones. The front drape is soft, and the hem is slightly raised, revealing the waist area. Bottoms are {argument name="bottoms" default="light blue denim shorts"}. Wearing them in a relaxed style with the front button undone and the waist loosened. Elegant and everyday expression that doesn't emphasize underwear.
The person is sitting diagonally on a windowside sofa bench, leaning one hand on a back cushion, while the other arm extends naturally towards the foreground. The upper body is slightly twisted, and the head is lowered lightly. Legs are not opened too naturally, with the weight resting on the seat. Realistically depict clothing wrinkles, the undone denim button area, and the sense of contact where the hand touches the seat.

Background/Light: 
Living room of a Japanese summer apartment. Large window and white lace curtains on the right, with a bit of greenery visible outside. Floor is bright wood grain, with a small houseplant, low wooden furniture, and an ecru rug in the background. Background is clean and lived-in, with few items.
Morning natural light enters from the upper right, illuminating hair, cheeks, collarbones, arms, and the irregularities of the white top fabric. Shadows fall softly towards the bottom left, with rectangular reflections of summer sunlight on the floor and seat. White fabric has highlights that aren't too strong, and skin has natural reflected light.

Composition/Camera: 
Vertical 2:3. Close-up photo-style composition looking down from a slightly higher position. Medium close-up showing from the head to the upper thighs. The subject is placed large, slightly to the right of the center, showing the summer air through the margins of the window and wooden floor. The camera distance feels natural, like it was taken slightly from above with a smartphone. A composition where the gaze flows to the face, chest, waist, and undone denim button. Background is lightly blurred, while the person and clothing textures are naturally sharp.

Texture/Style: 
High-quality Japanese photographic expression. Not an excessive gravure feel, but a lived-in portrait taken in a summer room. Carefully express natural skin texture, fabric thinness and wrinkles, denim stiffness, wooden floor reflections, and soft light through curtains. Unified color tone with white, pale wood, light blue denim, and soft skin tones. Light film feel, with a clean and transparent finish.

Negative: 
Underage, young face, excessive exposure, nudity, too transparent clothes, emphasis on underwear, vulgar poses, excessive sexual expression, unnatural chest, body distortion, finger failure, extra fingers, unnatural joints, poor contact between clothes and body, denim structural collapse, floating cloth, shadows inconsistent with light source, plastic skin, excessive skin correction, excessive HDR, logos, text, watermarks, obvious AI feel.

主題：夏の窓辺

人物・表情：
{argument name="年齢と性別" default="20代女性"}。自然で成熟した雰囲気、幼さのない落ち着いた顔立ち。{argument name="髪色" default="黒茶色"}の中長髪、空気感のある前髪と少し乱れた毛束。清透な日系写真メイク、自然な肌理、淡い血色、控えめなまつ毛、ピンクベージュの唇。顔は少し下向き、視線は伏せ気味で、静かに息を抜いたような表情。

服装・ポーズ：
{argument name="服の色" default="白〜アイボリー"}の薄手コットン素材のゆったりしたVネック夏トップス。襟元は広めで、肩と鎖骨まわりに自然な抜け感がある。前身頃はやわらかくドレープし、裾が少し持ち上がって腰まわりが見える。下は{argument name="ボトムス" default="淡いブルーのデニムショートパンツ"}。フロントのボタンを外し、ウエスト部分を少しゆるめたリラックスした着こな。下着を強調しない、上品で生活感のある表現。
人物は窓辺のソファベンチに斜めに座り、片手を後ろのクッションにつき、もう片方の腕は画面手前へ自然に伸びる。上体は少しひねり、頭を軽く下げる。脚は自然に開きすぎず、座面に重心が乗っている。服のしわ、デニムの開いたボタン部分、手が座面に触れる接地感をリアルに描写。

背景・光：
日本の夏のマンションのリビング。右側に大きな窓と白いレースカーテン、外の緑が少しだけ見える。床は明るい木目、奥に小さな観葉植物、低い木製家具、生成りのラグ。背景は清潔で生活感があり、物は少なめ。
午前の自然光が画面右上から入り、髪、頬、鎖骨、腕、白いトップスの布の凹凸を照らす。影は画面左下へやわらかく落ち、床と座面に夏の日差しの四角い反射が入る。白い布には強すぎないハイライト、肌には自然な反射光。

構図・カメラ：
縦長2:3。少し高い位置から見下ろす近距離の写真風構図。頭から太もも上部まで入るミディアムクローズ。人物は画面中央やや右寄りに大きく配置し、窓辺と木床の余白で夏の空気を見せる。カメラはスマホで少し上から撮ったような自然な距離感。顔、胸元、ウエスト、開いたデニムのボタン部分に視線が流れる構図。背景は軽くぼかし、人物と服の質感は自然にシャープ。

質感・スタイル：
高品質な日系写真表現。過度なグラビア感ではなく、夏の部屋で撮った生活感のあるポートレート。自然な肌理、布の薄さとしわ、デニムの硬さ、木床の反射、カーテン越しの柔らかい光を丁寧に表現。色調は白、淡い木色、薄いブルーデニム、柔らかな肌色で統一。軽いフィルム感、清潔で透明感のある仕上がり。

ネガティブ：
未成年、幼い顔、過度な露出、露点、透けすぎる服、下着の強調、低俗なポーズ、過剰な性的表現、不自然な胸元、身体の歪み、手指の破綻、余分な指、関節の不自然さ、服と体の接触不良、デニムの構造崩れ、浮いた布、光源と矛盾する影、プラスチック肌、過度な美肌補正、過剰HDR、ロゴ、文字、透かし、明らかなAI感。