August 29, 2026

Mermaid Floating in Moonlit Lake AI Image Prompt Examples

Prompt

ultra realistic photo of a full mermaid transformation, single iridescent fishtail starting at the hips, smooth fish scales (not reptile or dragon scales), no human legs visible, anatomically coherent single creature, detailed hands with exactly five fingers, she is a mature woman in her 30s with fair skin, long silver-white hair floating on the water surface, wearing a delicate pearl necklace and a soft blue shimmering top, lying on her back in a calm moonlit lake, serene expression, gentle ripples around her tail, night scene with full moon and starry sky, soft silver moonlight reflecting on the water, minimal mist, natural depth of field, shot on Canon EOS R5, subtle film grain, candid documentary photograph, natural skin texture with pores and subtle imperfections, asymmetric composition, low angle shot from water level, no face visible from front, slight motion blur on water, realistic lighting with soft moon glow

画像モデル: FLUX dev (Black Forest Labs)

Stable Diffusion 再現情報 (Replicate)

完全プロンプト (SDに実際に送信したテキスト)

adult, mature features, safe for work, wearing mythical or fantasy attire suited to the scene, anatomically coherent single-creature design, detailed hands with five fingers, fantasy art, mythical creature, ethereal atmosphere, detailed lighting, ultra realistic photo of a full mermaid transformation, single iridescent fishtail starting at the hips, smooth fish scales (not reptile or dragon scales), no human legs visible, anatomically coherent single creature, detailed hands with exactly five fingers, she is a mature woman in her 30s with fair skin, long silver-white hair floating on the water surface, wearing a delicate pearl necklace and a soft blue shimmering top, lying on her back in a calm moonlit lake, serene expression, gentle ripples around her tail, night scene with full moon and starry sky, soft silver moonlight reflecting on the water, minimal mist, natural depth of field, shot on Canon EOS R5, subtle film grain, candid documentary photograph, natural skin texture with pores and subtle imperfections, asymmetric composition, low angle shot from water level, no face visible from front, slight motion blur on water, realistic lighting with soft moon glow

ネガティブプロンプト

child, children, kid, minor, underage, teen, preteen, toddler, baby, loli, shota, young girl, young boy, little girl, little boy, school uniform on young face, nude, naked, topless, bottomless, nipples, areola, genitalia, penis, vagina, vulva, porn, hardcore, sex act, cum, orgasm, hentai, lewd, nsfw, real person, celebrity, actor, actress, politician, real photograph of celebrity, gore, gory, bloody, decapitation, beheading, torture, self-harm, bestiality, zoophilia, necrophilia, modern bikini, modern swimsuit, modern lingerie, panties, thong, sports bra, shirtless modern man, office worker shirtless, human legs on mermaid, legs and fish tail together, two tails, dragon tail on mermaid, lizard tail on mermaid, reptile tail on mermaid, scales on human legs, torso to tail seam mid-thigh, mermaid with knees, mermaid with feet, lowres, bad anatomy, bad hands, extra fingers, six fingers, seven fingers, fewer fingers, four fingers, fused fingers, twisted fingers, deformed hand, mutated hand, malformed hand, extra limbs, missing limbs, watermark, signature, text

上記の完全プロンプトとネガティブプロンプトを Replicate / ComfyUI / Forge / Automatic1111 等に貼り付けると、近い結果を再現できます (シードや解像度の違いで完全一致はしません)。

このプロンプト集は、月光の下でのリアルな人魚シーンを生成することを目的としており、解剖学的整合性と写真のようなリアリティを重視しています。一般的なAIアーティファクト（余分な手足や爬虫類のような鱗など）を避けるため、「単一の虹色の魚の尾」「指は正確に5本」と明示しています。

最良の結果を得るには、リアルな写真で訓練されたモデル（FLUXやSDXLのリアリズムLoRAなど）を使用し、ネガティブプロンプトで「竜の鱗」「余分な手足」「アニメ風」を除外することをお勧めします。水面からのローアングルは劇的な遠近感を加え、「30代の成熟した女性」という設定が典型的な若い人魚のステレオタイプを避けています。

Prompt Overview

This prompt set is designed for creating a realistic mermaid scene under moonlight, emphasizing anatomical coherence and photographic authenticity. The key challenges are avoiding common AI artifacts like extra limbs or reptile-like scales, which is why the prompt explicitly states 'single iridescent fishtail' and 'detailed hands with exactly five fingers'.

For best results, use a model trained on realistic photography (like FLUX or SDXL with a realism LoRA) and consider using a negative prompt to exclude 'dragon scales', 'extra limbs', and 'cartoon style'. The low angle from water level adds a dramatic perspective, while the 'mature woman in her 30s' diversifies the typical young mermaid trope.

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