Image Prompt Library

Prompt Engineering

Image Prompt Library

A structured library of tested, production-ready image generation prompts — built for a brand’s full marketing calendar so any team member can generate on-brand visuals without any prompting expertise.

Type

Brand Prompt System

Tools Used

Midjourney, Flux, NanaBanana

Year

2025

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Image Prompt Library — Output Grid Preview

Project Overview

The Challenge

Most marketing teams that adopt AI image generation hit the same wall quickly: one person in the team knows how to prompt well, and everyone else produces inconsistent results that don’t match the brand. Every image generation session becomes a guessing game — different lighting, different tones, different aesthetic — and the output never quite looks like it came from the same brand. The knowledge of what works stays locked inside one person’s head, and the moment they’re unavailable, the whole visual production process breaks down.

The Solution

We built a structured image prompt library — a documented, tested, ready-to-use system of prompts organised around the brand’s full visual content needs. Rather than producing ad hoc prompts for each request, we systematically mapped out every image use case the brand needed to cover: hero product shots, lifestyle content, seasonal campaigns, social media formats, ad creatives, and background textures.

For each use case we developed a base prompt template with fixed brand constants — lighting style, colour palette, mood, camera settings — and documented which variables to swap out for different products, settings, or seasons. Every prompt in the library was tested and validated against the brand’s visual guidelines before being included. The final deliverable was a structured Notion document the whole team could access, with prompts organised by content type, annotated with usage notes, and accompanied by example outputs for each template.

The Results

Any member of the marketing team can now open the library, pick the right prompt template for their content need, make the variable swaps, and generate on-brand imagery in under a minute — with no prompting experience required. Revision rounds dropped dramatically because outputs are consistent from the first generation. The brand’s visual production is no longer dependent on a single person’s expertise, and the library grows with the brand: new use cases get added and documented as they come up, making the system progressively more valuable over time.

Project Details

80+

Tested Prompt Templates

90%

Reduction in Revision Rounds

<1 min

From Brief to On-Brand Image

Tools Used

Midjourney

Flux

NanaBanana

Notion

Library Categories

Hero product shots

Lifestyle & context scenes

Seasonal campaigns

Social media formats

Ad creatives & banners

Prompt Samples

Inside the Library

Each template follows the same structure: fixed brand constants are locked in, variable slots are clearly marked in [brackets] for the user to swap out. No expertise needed — just pick, swap, generate.

Template 01 — Hero Product Shot

Variables: [product name], [surface material], [background colour]

Commercial product photography of [product name], placed on [surface material], soft natural light from upper left, clean [background colour] background, ultra-sharp product detail, editorial brand aesthetic, 85mm lens, shallow depth of field, professional studio quality, no text –ar 4:5 –style raw –v 6

Template 02 — Lifestyle Scene

Variables: [product name], [setting], [time of day], [mood]

Lifestyle brand photography, [product name] featured naturally in [setting], [time of day] natural lighting, [mood] atmosphere, aspirational but authentic, real environment not studio, editorial commercial photography, 35mm lens, warm colour grade, no text –ar 16:9 –style raw –v 6

Template 03 — Seasonal Campaign

Variables: [season], [product name], [colour palette], [campaign mood]

Cinematic [season] campaign photograph, [product name] as hero element, [colour palette] colour palette, [campaign mood] mood, premium brand aesthetic, editorial commercial photography, bokeh background, luxury feel, ultra-realistic, no text –ar 4:5 –style raw –v 6

Example — Template 01 Filled In

Commercial product photography of Actifood protein bar, placed on light grey concrete surface, soft natural light from upper left, clean off-white background, ultra-sharp product detail, editorial brand aesthetic, 85mm lens, shallow depth of field, professional studio quality, no text –ar 4:5 –style raw –v 6

Liked what you saw?

Let’s Engineer Yours

Want your whole team generating on-brand imagery without any prompting expertise? Let’s build a custom prompt library for your brand’s full content calendar.