5 principles for producing the desired image with Nano Banana
What you need to get close to your ideal image with Nano Banana、It's not a difficult spell。
What's important is、
the visual in my head、is to convert the model into a structure that can be interpreted。
Points that beginners should keep in mind first、The following five。
- write specifically
- Organize information with structure
- Write in complete form rather than in negation
- Specify camera/composition
- Don't decide in one go, do it step by step.
By holding these five things、Output repeatability and accuracy are greatly improved。
Prerequisites to understand first
Prompts are not “words” but “direction instructions”
What beginners tend to do、A list of keywords。
NG例
- beautiful woman
- cafe
- Fashionable
- natural light
- Photoreal
This is an "element memo"、
画面設計の指示になっていません。
OK mindset
👉 プロンプトは「撮影現場でのディレクション」
改善例（具体化）
30代前半の女性が、午前中の落ち着いたカフェでノートパソコンを操作している。
ベージュのニットとダークブラウンのロングスカート。
窓際の席、Soft natural light from the right side。
coffee cup and notebook on the table。
Bust up composition、Slightly diagonal 45 degree perspective。
Photorealistic、Texture like a lifestyle feature in a magazine。
1. write specifically
Increase the granularity of information
By clarifying “who, where, what, and how to show”、Prevents blurred interpretations。
NG例
businessman photo
OK example
40A male businessman in his teens、Walking in the office in the evening while looking at my smartphone。
dark gray suit、white shirt、navy tie。
The background is a glass hallway、The cityscape at sunset outside。
Horizontal composition that fits the whole body、The camera seems to follow at eye level。
やや浅い被写界深度で背景は軽くボケる。
シネマティックで落ち着いたトーン。
2. Organize information with structure
"Order of elements" improves accuracy
同じ内容でも、順番がバラバラだと解釈が不安定になります。
Recommended structure (basic template)
- 画風
- subject
- 動作
- 場所・時間
- 構図・カメラ
- Light
- finishing
👉 この順番にするだけで「読みやすい指示」になります
Example (structured prompt)
photorealistic images。
30代前半の女性が、午前中の落ち着いたカフェでノートパソコンを操作している。
ベージュのニットとダークブラウンのロングスカート。
窓際の席、Soft natural light from the right side。
coffee cup and notebook on the table。
Bust up composition、Slightly diagonal 45 degree perspective。
Texture like a lifestyle feature in a magazine。
3. Write in “completed form” rather than negation
It is easier to understand the model as a "completed image" than as "exclusion conditions"。
NG例
make sure there are no people、Lost the signboard、Don't make a mess
OK example
A quiet shopping street with no traffic。
A row of simple buildings、Signage is minimal。
linear and orderly composition。
Clear morning air and uniform natural light。
*Exceptions only when editing (deletion, replacement, etc.)
4. Specify camera/composition
If the composition is vague、A normal, nondescript imagebecomes。
NG例
woman walking in the city
OK example
20A woman in her late teens is walking on a city sidewalk。
white shirt and denim、shoulder bag。
The camera is a low angle from a low position。
Vertical composition that includes the whole body (9:16）。
In the background are glass buildings。
Contrast is a little strong in front light。
Clear and sharp depictions like fashion advertisements。
5. Don't decide in one go (staged design)
Image generation is a "design process"。
Practical flow
1times (base)
A woman working at a cafe during the day。Photoreal。
2回目（人物調整）
20代後半、日本人女性。short bob。黒のタートルネック。
3回目（環境調整）
木製テーブルと観葉植物。looking at camera。
4回目（構図調整）
bust up、縦構図、目線より少し上から。
5回目（仕上げ）
全体的に明るく、ハイキーで爽やかな感じに。
Important points
👉 修正時は「維持」と「変更」を明確にする
Case
Maintain your facial features and hairstyle、Change your clothes to a white shirt。
The composition remains the same、Change the light to warm evening colors。
summary
How to get stable results with Nano Banana、
Write with structure rather than feelingis important。
Five principles again：
- write specifically
- Organize by structure
- write in complete form
- Specify the composition
- fill in stages
By holding these five things、
From mere “generation”、intentional visual designchanges to。
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