Nothing kills the vibe of a social media carousel faster than a character who looks like a cousin by slide five. You know the drill: the face shifts, the jacket changes color, and suddenly your cohesive story feels stitched together from mismatched scraps. A new guide on DEV.to tackles this exact pain point, offering a structured seven-step process for planning a five-slide carousel where your character stays perfectly consistent. The core philosophy? Plan before you prompt.

Start With the Story, Not the Prompt

Before you even open your image editor, write out your five-slide narrative in plain sentences. The guide suggests a simple morning-to-sunset desk workflow: character looks at a messy desk, clears it, takes a coffee break, finishes work, and closes up shop. This script serves two critical functions. First, it identifies what changesโ€”pose, action, lighting, props. Second, and more importantly, it reveals what must stay the sameโ€”face, hair, clothing, and style. Write that second list down. It becomes your checklist for every single slide.

Anchor Your Edits to One Reference

Pick the single best photo or illustration of your character to serve as your anchor. Look for a clear, well-lit view of the face, fully visible clothing, and a simple background. Crucially, every slide must be derived from this original reference image, not from the previous slide. If you chain editsโ€”making slide two from slide one, and slide three from slide twoโ€”small drifts accumulate. By the final slide, your character will have morphed into someone else entirely. Keep the lineage direct.

The Power of the Fixed Description

Create a 'fixed description' block that you paste into every prompt without changing a single word. For example: 'Same woman as in the reference: shoulder-length dark hair, round glasses, mustard-yellow knit sweater, silver watch on left wrist.' Only append the slide-specific changes after this block. Consistency in wording matters. If you call it a 'yellow sweater' on one slide and a 'golden cardigan' on the next, you are asking the AI for two different garments. Tools like Nano Banana AI help with consistency, but your prompt hygiene is the real driver.

Iterate with Small, Focused Changes

Resist the urge to cram pose, action, lighting, and background changes into one massive prompt. Change one thing at a time. Start from the reference, adjust the pose and action, then review the result against your checklist. If needed, run a second, smaller edit for lighting or background. This modular approach makes debugging easy. If the glasses disappear, you know exactly which step caused the error, and you can re-run just that step with a clearer instruction like 'keep the round glasses.'

Control the Light and Frame

Lighting is the quickest way to make a carousel feel like a continuous story. If your script moves from morning to sunset, plan the light shift: cool morning light for slides one and two, neutral daylight for three, and warm evening light for four and five. Describe light direction explicitlyโ€”'warm light from the right, low angle' beats 'sunset vibe' every time. Also, lock down your frame. Decide in advance where the character sits in the composition and how much is visible. Avoid accidental jumps from tight close-ups to wide shots; change framing only on purpose.

The Final Side-by-Side Review

Once you have drafts for all five slides, line them up and compare them side by side. Check against your fixed list from step one. Is the face shape identical? Are the glasses, sweater color, and watch still there? Does the light change in the intended order? Do the props make sense, like the laptop appearing in slide two and staying put? If a slide breaks the pattern, do not edit the broken version further. Go back to the original reference and re-run the edit from scratch.

Key Takeaways

  • Write your five-line story first to identify what changes and what stays fixed.
  • Always derive edits from the original reference image, never from the previous slide.
  • Use a word-for-word fixed character description in every prompt to avoid garment drift.
  • Change pose, action, and lighting in separate, small edits to isolate errors.
  • Review all five slides side by side against a checklist before posting.

The Bottom Line

Consistency isn't magic; it's a checklist. If you aren't planning your character's fixed traits before you type a single prompt, you're just gambling with your brand identity.