Summer Seaside Portrait

Subject: {argument name="subject" default="Summer Seaside with Bubbles"}

Person/Expression: A {argument name="age" default="20-something"} woman. Natural and mature Japanese facial features with transparent photographic makeup. Skin is bright and smooth but with a realistic texture that retains slight pores and fine hair. Pale rose blush, thin natural eyelashes, soft brown eyebrows, and coral pink lips. The expression is calm and slightly dreamy, with lips lightly parted and gaze directed slightly above the camera. Dark brown medium-length hair, light see-through bangs, with the ends and bangs swaying naturally in the sea breeze.

Clothing/Pose: Pale ice-blue sleeveless rib-knit top and a light white cotton long skirt. A clean summer seaside outfit. The person is sitting sideways on a low concrete wall along the coast, twisting their upper body slightly toward the camera. Their right hand lightly holds their hair by the ear, and the left hand is placed on the wall for support. One knee is raised, and the other leg flows naturally toward the right. The skirt catches the wind around the knees, creating folds and contact shadows.

Background/Light: {argument name="location" default="Coastal Shonan or Kamakura"}. Sea surface at the bottom, blurred low mountain ranges and coastal townscapes in the distance. Most of the screen is a clear cyan-blue sky. Large and small soap bubbles float around the person and in the sky, creating iridescent reflections and soft bokeh. Sunlight enters strongly from the top left, creating bright highlights on the hair outline, cheeks, shoulders, arms, and the top of the skirt. Shadows fall shallowly toward the bottom right, and reflected light from the sea gently lifts the skin.

Composition/Camera: Vertical 2:3 ratio. Low-angle medium portrait. The person is positioned from the bottom half to the center, with the face slightly above center. Leave large empty space in the sky and create depth with bubbles. The camera looks up slightly from a position lower than the seating surface. Natural low angle that isn't too wide-angle, so legs and hands do not appear unnaturally enlarged. Focus is on the eyes; the background sea and distance are softly blurred. Some foreground bubbles are large and faintly blurred.

Texture/Style: High-quality Japanese photography. Not a summer magazine gravure, but a transparent Japanese-style portrait photo. Don't make primary colors too strong; the blue sky should be toward cyan, skin should be bright and natural, and the white skirt should not be overexposed. Light is bright but not too harsh, adding fine particles and faint halation like a film photograph. Carefully depict the iridescent reflections of the bubbles, fabric wrinkles, thin strands of hair, and natural skin shadows.

Negative: Faces that look like minors, infantilization, excessive skin correction, plastic-like skin, cheap influencer style, excessive exposure, transparent clothing, exposed underwear, nudity, unnatural faces or gaze, extra or missing fingers, fused limbs, joint failure, distorted leg perspective, floating body, poor contact between clothes and body, shadows inconsistent with light source, unnaturally deformed bubbles, text, logos, watermarks, excessive HDR, excessive sharpness, obvious AI feel.

主題：
{argument name="主題" default="夏泡の海辺"}

人物・表情：
{argument name="年齢" default="20代"}女性。自然で成熟した日系の顔立ち、清透感のある写真用メイク。肌は明るくなめらかだが、毛穴や産毛をわずかに残したリアルな質感。淡いローズ系チーク、細く自然なまつ毛、やわらかなブラウン眉、コーラルピンクのリップ。表情は落ち着いていて少し夢を見るように、唇を軽く開き、視線はカメラの少し上へ向ける。髪は暗めブラウンのミディアム、軽いシースルーバング、潮風で毛先と前髪が自然に揺れている。

服装・ポーズ：
淡いアイスブルーのノースリーブリブニット、白い軽やかなコットンロングスカート。清潔感のある夏の海辺コーデ。人物は海沿いの低いコンクリート壁に横向きで座り、上半身をカメラ側へ少しひねる。人物自身の右手は耳の横で髪を軽く押さえ、左手は壁につけて身体を支える。片膝を立て、もう片脚は画面右へ自然に流す。スカートは膝まわりで風を含み、布の重なりと接触影を出す。

背景・光：
{argument name="場所" default="湘南または鎌倉の海沿い"}。下部に海面、遠景にぼけた低い山並みと沿岸の街並み。画面の大部分は澄んだシアンブルーの空。大小のシャボン玉が人物の周囲と上空に浮かび、虹色の反射と柔らかなボケを作る。太陽光は画面左上から強めに入り、髪の輪郭、頬、肩、腕、スカート上部に明るいハイライト。影は画面右下へ浅く落ち、海からの反射光で肌をやさしく持ち上げる。

構図・カメラ：
縦長2:3。ローアングルの中景ポートレート。人物は画面下半分から中央に配置し、顔は中央より少し上。空の余白を大きく取り、シャボン玉で奥行きを作る。カメラは座面より低い位置から少し見上げる。広角すぎない自然な低角度で、脚や手が不自然に拡大しない。焦点は目元、背景の海と遠景は柔らかくぼかす。前景の泡は一部大きく淡くぼける。

質感・スタイル：
高品質な日系写真。夏の雑誌グラビアではなく、透明感のある日系ポートレート写真。原色を強くしすぎず、青空はシアン寄り、肌は明るく自然、白いスカートは飛ばしすぎない。光はまぶしいが硬すぎず、フィルム写真のような微細な粒子と淡いハレーションを加える。シャボン玉の虹色反射、布のしわ、髪の細い束、肌の自然な陰影を丁寧に描写する。

ネガティブ：
未成年に見える顔、幼態化、過度な美肌補正、プラスチックのような肌、安っぽい網紅風、過度な露出、透ける服、下着の露出、露点、不自然な顔や視線、余分または欠けた指、手足の融合、関節の破綻、脚の遠近感の崩れ、浮いた身体、服と身体の接触不良、光源と矛盾する影、泡の不自然な変形、文字、ロゴ、透かし、過度なHDR、過度なシャープ、明らかなAI感。