September 22, 2026

Moonlit Lake Mermaid with Silver Scales — AI Image Prompt

Prompt

candid documentary photograph of a single mermaid floating motionless in a moonlit freshwater lake, from behind, back view, facing away from camera, no face visible, glowing iridescent silver scales across her back, 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, long dark wet hair drifting across the still water surface, wearing a minimal hand-woven kelp-fiber bodice in muted pearl and silver tones, natural skin texture with pores and subtle imperfections, faint ripples spreading outward, moonlit silver-blue light on the water, mist drifting just above the surface, no human-built structures, shot on Canon EOS R5, natural depth of field, subtle film grain, slight motion blur in the water, asymmetric composition, real life moment, quiet low-light ambient atmosphere

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, candid documentary photograph of a single mermaid floating motionless in a moonlit freshwater lake, from behind, back view, facing away from camera, no face visible, glowing iridescent silver scales across her back, 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, long dark wet hair drifting across the still water surface, wearing a minimal hand-woven kelp-fiber bodice in muted pearl and silver tones, natural skin texture with pores and subtle imperfections, faint ripples spreading outward, moonlit silver-blue light on the water, mist drifting just above the surface, no human-built structures, shot on Canon EOS R5, natural depth of field, subtle film grain, slight motion blur in the water, asymmetric composition, real life moment, quiet low-light ambient atmosphere

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)。

このプロンプトは、月光に照らされた湖に浮かぶ一体の人魚を、イラストではなくドキュメンタリー風の写真として描くための作例です。人魚の解剖学（腰から始まる一本の魚尾、滑らかな魚の鱗、人間の脚なし、指は五本）を明示し、カメラを背中側に固定することで、ポーズ然とした雰囲気ではなく静かで神秘的な空気を保っています。

暗いシーンのため、低ISOでノイズを抑えつつ、やや寒色寄りにグレーディングすると綺麗に仕上がります。「moonlit low-light」「subtle film grain」「35mm film look」といったキーワードを足すことで、ファンタジープロンプトにありがちなツルツルした3DCG感を避けられます。LoRAを使う場合は水面反射系や水中ライティング系が相性良く、肌リアル化LoRAを併用すると胴体と魚尾のつなぎ目が自然になります。

動画化する場合は波紋をゆっくり動かし、尾の動きは最小限に。静けさがこの画像の主役です。なお、胴衣の記述を省くと肌の露出が増えやすいので、海藻繊維の衣装キーワードは残しておくのが安全で上品な仕上がりになります。

Prompt Overview

This prompt captures a moonlit lake scene featuring a single mermaid with iridescent silver scales, rendered as a candid documentary-style photograph rather than illustration. The prompt explicitly locks the mermaid anatomy — a single fishtail starting at the hips, smooth fish scales, no human legs, exactly five fingers — and keeps the camera at her back so the mood stays quiet and mysterious instead of posed.

Because the scene is dark, generate at low ISO noise with a slight cool color grade. Adding the keyword moonlit low-light plus subtle film grain and 35mm film look helps avoid the glossy 3DCG feel that many fantasy prompts produce. If you use a LoRA, a soft water-reflection or aquatic-lighting LoRA pairs well, and a realistic-skin LoRA is recommended to keep the transition line between human torso and fish tail anatomically believable.

For video, animate the ripples slowly and keep the tail movement minimal — the stillness is the key image. Trying variations with no bodice keywords tends to result in bare skin; keep the kelp-fiber garment description in the prompt for a safe and elegant result.

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