Neural Underground: Cinematic Data Broker
A ready-to-use AI prompt for a moody, high-contrast cinematic portrait of a Latino information broker in a dystopian data-smuggling hub, with diegetic lighting and anamorphic depth.
Prompt Body
[SUBJECT & ACTION]: A tight three-quarter portrait of Daniel Cruz, a Latino underground information broker in his late-20s. He has hardened, weathered features, stress lines around his eyes, a scarred jawline, and ink-stained fast hands. His gaze is direct, holding a subtle, complex emotional contradiction of exhaustion and unwavering defiance. He wears practical, layered dark resistance workwear. A subtle, flat neural interface scar is visible near his temple.
[COMPOSITION & SETTING]: Shot inside an improvised data-smuggling hub. Daniel is in the foreground, sharp and detailed. The background features a shallow depth of field, with soft-focus container-adjacent steel architecture and glowing, primitive terminal screens.
[LIGHTING & OPTICS]: Shot on Arri Alexa LF with a $85\text{mm}$ anamorphic lens at $f/1.8$. Strictly diegetic lighting: the cold, pale-blue glow from an unseen monitor illuminates one side of his face, while a warm, low-key biometric amber accent light from a nearby terminal defines his profile from the other. No lens flares, no HUD overlays, no artificial highlights.
[COLOR & ATMOSPHERE]: The color palette is dominated by dark anthracite, deep graphite, and sharp biometric amber. The air is thick with a heavy, industrial smog-haze, cleared only by the cold indoor ventilation. Highly textured skin with visible pores, dust, and sweat, communicating an atmosphere of relentless corporate surveillance and human friction --ar 21:9
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Guide & Practical Tips
How to use this prompt
This prompt is structured with clear sections, making it ideal for Nano Banana's structured prompt style. Copy the entire prompt block into your Nano Banana image generation interface. The model will interpret the diegetic lighting, lens specifications, and atmospheric details to produce a consistent cinematic result. For best results, keep the subject description and lighting instructions unchanged. You may adjust the background or color palette if needed.
Best use cases
Use this prompt for character portraits in cyberpunk or dystopian narratives, editorial-style illustrations, concept art for games or films, and dark sci-fi book covers. The 21:9 aspect ratio suits cinematic stills, widescreen banners, or video thumbnails.
What to adjust
- Subject: Replace Daniel Cruz with another character by updating the name, ethnicity, age, and features. Maintain the same structure for consistency.
- Background: Change the data-smuggling hub to a different dystopian location (e.g., neon alley, corporate lobby) while keeping the shallow depth of field.
- Lighting: The diegetic lighting scheme is key. If you change the scene, ensure the light sources remain motivated by visible objects.
- Color palette: Adjust the anthracite and amber palette to other moody combinations like teal and orange or monochrome blue.
- Aspect ratio: Change
--ar 21:9to 16:9, 4:5, or 1:1 depending on your output needs.
Common mistakes
- Adding lens flares or HUD overlays – the prompt explicitly avoids them; adding them would break the diegetic realism.
- Overcomplicating the background – the shallow depth of field is intentional; a too-detailed background distracts from the subject.
- Changing the lighting to non-diegetic sources – this reduces the atmospheric authenticity.
- Ignoring the neural interface scar – it's a subtle but important character detail.
Variations
- Corporate Spy: Change the character to a clean-cut corporate spy, with sharp suit and holographic display, maintaining the same lighting.
- Apocalyptic Survivor: Add more grime, torn clothing, and a red warning light for a more desperate feel.
- Noir Version: Convert to black-and-white with high contrast, emphasizing the anamorphic lens and skin texture.
- Futuristic Fashion: Replace workwear with tactical high-fashion gear by a cyberpunk designer, keeping the diegetic lighting.
- Environmental Focus: Zoom out to a medium shot showing more of the data-smuggling hub, with the same lighting and color palette.
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