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[Subject] One adult female model with long black wavy hair, natural beach makeup, confident direct gaze, relaxed expression. She is standing in shallow shoreline foam while holding a light-colored surfboard vertically at her right side. Outfit: black strapless one-piece swimsuit with subtle sparkle texture. Minimal accessories: thin bracelet.

[Environment] Sunny beach shoreline with turquoise ocean water, white sea foam around legs, bright daylight, no visible buildings or crowds, clean coastal backdrop.

[Composition/Camera] Vertical 9:16 portrait, medium-full framing from thighs upward, subject centered slightly left, surfboard edge visible on right side. Camera at chest-level with mild telephoto compression.

[Lighting] Strong natural sunlight from upper left/front, bright skin highlights, defined shadows with soft bounce from water, high contrast but clear detail.

[Style/Rendering] Photorealistic beach editorial photography, vivid cyan water tones, glossy wet-skin highlights, crisp detail on hair and foam, clean commercial lifestyle finish.

[Detail constraints] Keep exactly one model, one surfboard, turquoise ocean, and shoreline foam; preserve black strapless one-piece swimsuit and sunny daylight look; no extra people, logos, text overlays, or added props.

Negative prompt: extra surfers, crowded beach, cloudy dark weather, two-piece outfit, distorted limbs, overprocessed plastic skin, low-res texture, watermark, cartoon style, muddy water colors, excessive background clutter.

Suggested parameters: aspect ratio 9:16, focal length 70-105mm, aperture f/4-f/5.6, steps 30-42, CFG/style strength 5.5-7, sampler DPM++ 2M Karras, seed suggestion 456028.

Delta prompt strategy (top drift risks + corrective micro-prompts):
1) Surfboard missing -> "hold a light surfboard on right side, vertical orientation"
2) Water color dull -> "vivid turquoise ocean with bright white foam"
3) Outfit changes -> "black strapless one-piece swimsuit with subtle sparkle"
4) Subject off-center -> "single model near center-left in medium-full frame"
5) Lighting too flat -> "strong sunny daylight with reflective water highlights"
6) Hair too tidy -> "long dark wavy hair with light wind movement"
7) Beach overcrowded -> "clean empty shoreline, no other people"
8) Frame too close -> "include torso and upper legs with visible surfboard edge"
9) Tone too cold -> "warm sunlit skin tones with cyan sea contrast"
10) Style turns fantasy -> "photoreal commercial beach editorial"