Make Realistic Composite Images with Nano Banana

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Polished visuals usually fail in the same quiet way. The scene feels wrong. The product looks pasted. The “team photo” screams stock.

In a lean business, that gap costs real time and confidence, especially when a deck or ad needs to ship today.

So we used Nano Banana to merge real photos into one believable image, then fine-tuned the realism in a few prompts.

How We Put a Headshot Into a Conference Room

We emulated a solo consultant who needed a “speaking at a client workshop” image for a pitch deck. We uploaded a clean headshot plus a conference room photo, then prompted Nano Banana to place the person into the room with natural lighting and shadows.

Why Nano Banana Works

✅ Identifies subject vs background so your “who” and “where” land in the right places without manual masking

✅ Matches lighting, angles, & shadows to make composites look believable instead of pasted on

✅ Keeps character consistency so follow-up tweaks stay anchored to the same person or object

✅ Iterates quickly with follow-up prompts so you can dial in realism in minutes, saving hours of manual editing

How We Did It

Here’s the exact workflow we followed to blend two or more photos into one realistic image, plus the prompt patterns that helped us get clean results within about 15 to 25 minutes.

1. Choose a clear “subject” image + a clear “scene” image

Pick a subject photo with good detail (a headshot, product photo, pet photo) and a separate background that has obvious perspective (a room, cafe table, city street). This gives Nano Banana enough cues to place scale, direction, and depth correctly.

2. Upload both images in the same chat

Drop the two images into Nano Banana together, not one at a time. The model uses the pair to infer what you want kept and what you want treated as the environment, which reduces confusion and cuts down on retries.

3. Give one simple instruction that names the action and the goal

Start with a single sentence that says what to move or replace, plus what “realistic” means for the outcome.

Example prompts you can reuse:

‘Place the person from the headshot into the conference room photo so it looks like they’re presenting.’

‘Remove the cup on the table and replace it with the branded mug from the other image.’

Keeping the first prompt clean helps you get a usable draft fast.

💫 Level Up

Turn Everyday Photos Into Ad-Ready Visuals Fast

If this week’s Nano Banana workflow clicked for you, this course is the natural next step. Google Nano Banana: Create & Edit Stunning Visuals in Minutes walks you through the exact prompt patterns for clean edits, believable photo blends, and brand-ready assets you can ship without a design background.

• Access Nano Banana in Gemini or AI Studio and set up a clean workflow for repeatable edits

• Remove backgrounds, distractions, and unwanted objects while keeping edges natural

• Swap outfits, props, and colors for fast creative variations and A B testing

• Combine multiple photos into believable composites with lighting, perspective, and shadows that match

• Create thumbnails, banners, product mockups, logos, and brand visuals you can actually publish

If you want faster creative cycles without sacrificing quality, this is the skill set to lock in now.

4. Correct realism with targeted follow-ups

If something feels off, do not restart. Fix one variable at a time with short follow-ups.

Try prompts like:

‘Match the lighting to early afternoon.’

Adjust shadows so they fall to the right, consistent with the window light.’

‘Reduce the subject size by 10% and place them two steps farther back.’

This is where you save the most time. Each prompt builds on the last version, so you can get to “looks real” without a full redo.

5. Use “replace” prompts for product marketing mockups

For entrepreneurs running ads, the fastest win is swapping objects in a scene. Upload your product-on-plain-background image plus a lifestyle photo, then use a replace instruction:

‘Remove the existing mug and replace it with the branded mug, matching texture and perspective.’

You can generate multiple environments in under 30 minutes, which is real ROI versus setting up extra photo shoots.

6. Experiment with creative remixes only after you nail the basics

If you’re blending unrelated scenes (like mountains + a city skyline), expect extra iterations. Start simple:

‘Blend the mountain scene with the city skyline so the city sits at the foot of the mountains.’

Then refine scale and integration:

‘Make the skyline larger so it fits the mountain base naturally.’

Treat this as a second pass workflow, not the first thing you try.

Other Use Cases

Once you’ve got the hang of subject plus background plus follow-ups, Nano Banana becomes a reliable way to create context-ready visuals without a full design pipeline. Try the same approach with your own photos, then reuse your best prompt tweaks as a repeatable recipe.

📈 Marketing: Swap products into lifestyle scenes for quick ad variants and landing pages

💡 Sales: Place a founder or rep into a “client meeting” setting for pitch decks and proposals

🛒 Ecommerce: Test how packaging looks on shelves, countertops, or desks before a shoot

🧑‍💼 HR or Recruiting: Create consistent “team in action” visuals for job posts and onboarding docs

✏️ Creators: Build a series of recurring characters or pets in different scenes for content consistency

💡Bonus Pro Tips

Control one change per prompt so you can tell what actually improved the result (lighting first, then shadow direction, then scale). It speeds up iteration and keeps the image from drifting.

Call out light source cues like “window light from the left” or “overhead cafe lighting.” When you define the source, shadows and highlights usually snap into place faster.

Lock placement with specifics by adding constraints like “two feet behind the table edge” or “centered on the couch cushion.” It helps with scale and avoids floating objects.

⏭️ What’s Next

Before you close this, run the workflow once on a real image you need this week and keep your best follow-up prompts saved as a reusable “realism checklist” (lighting, shadows, scale, placement).

Small habit, big payoff, especially when you’re shipping visuals on a deadline.

If you want the bigger playbook for turning small workflows into repeatable systems, Skill Leap has you covered.