Style reference and subject reference solve different problems
How to separate visual treatment from subject identity when planning an image series.

Define the kind of consistency you need
Midjourney's Style Reference documentation describes a way to guide the visual treatment of generated images. Style guidance is a different goal from preserving a particular person, product or object. A cohesive palette across a series does not, by itself, establish that the same subject appears in every frame.
Before choosing a control, name the mismatch you are trying to fix. Is the lighting inconsistent? Does the illustration technique change? Or does a character's face drift? Those are different review questions. A useful brief keeps them separate instead of asking a single reference to do everything.
Write a style brief in observable terms
Describe the palette, contrast, texture and framing you want to retain. A phrase such as 'premium brand look' can mean very different things to different collaborators. A note such as 'muted blue background, hard side light, visible paper grain and generous negative space' gives the reviewer something specific to compare.
Use your own description to explain the reference's role. This helps you change the subject while preserving the intended treatment. If an output copies an unwanted compositional feature, revise the instructions rather than accepting it merely because the colors look close.
Test across a small image series
Try the treatment on a portrait, a product composition and an environment if your project needs all three. Review them together at thumbnail size and at delivery size. An approach that works for a poster may be difficult to maintain in a small ad crop.
Change one instruction at a time and save the result. You are building a usable style recipe, not searching indefinitely for a favorite picture. Keep notes about what breaks the recipe, including dense text, busy backgrounds or unusual aspect ratios.
Finish the brand work in an editor
Keep critical typography, logos and required product details under direct control. An image generator can contribute the visual base while a conventional design tool handles exact alignment, accessible contrast and final copy. That separation makes later revisions easier to manage.
Read the documentation for the model and interface you actually use; parameter compatibility can change. Then build a compact set of approved examples with written instructions. A collaborator should be able to understand the treatment without relying on your memory of a successful prompt.
Questions & answers
Is style reference the same as copying a composition?
No. Decide which visual qualities you intend to retain and inspect whether the resulting composition still suits the new brief.
Can I guarantee identical colors?
Do not assume a generated image meets an exact brand specification. Measure and correct final colors in an editor when precision matters.
Where should I check the parameter syntax?
Use the current Midjourney Style Reference documentation linked below, since syntax and model compatibility may change.
Sources & further reading
Product details should be checked against these primary sources. Editorial recommendations are our interpretation; they are not hands-on benchmark results.
