Nano Banana Overlay Prompt Pack: Stickers, Cutouts and Callouts for Reels

An overlay is an image placed above your video: a pointer beside a detail, a cutout of the product you are discussing, or a small illustration that makes an idea easier to follow. It should help someone understand the Reel. It does not need to become the main event.

This guide gives you an original prompt pack and a way to turn generated artwork into usable editing assets. The examples are production instructions, not pictures generated or tested for this article. Creator Lane does not generate these images.

Start with the sentence, not the sticker

Write the moment you want to explain. For example: “Put the microphone here, not beside the fan.” That sentence needs a pointer and perhaps a simple fan symbol. A decorative explosion, cartoon face and spinning badge would add work without explaining more.

Make a short list before opening an image tool:

• The viewer needs to notice: the microphone position.
• The overlay needs to show: a curved pointer.
• The video already contains: a face, a microphone and subtitles.
• The free space is: beside the microphone.
• The asset should disappear: when the explanation moves on.

If a plain arrow in your editor does the job, use it. Generate an illustration when its shape, texture or character adds something that a basic editing shape cannot.

Choose and record the actual image model

Nano Banana is a family name, not one fixed feature set. Google currently identifies Nano Banana 2 as Gemini 3.1 Flash Image and Nano Banana Pro as Gemini 3 Pro Image. Record the model and interface you actually use; the Gemini app and an API workflow need not expose the same controls. Google image-generation documentation

For this pack, start with one image at a time. The goal is a small set you can inspect, not a sheet of fifty tiny objects. Save the prompt beside the exported file so another editor can understand what it was intended to do.

Give the pack one visual style

Use a small style contract. Here is an illustrative one for an educational Reel series:

STYLE CONTRACT — example, not a generated output
Mood: friendly, clear, slightly handmade.
Shape: rounded corners and simple silhouettes.
Colours: warm orange, dark charcoal, warm white.
Outline: one dark outline of consistent thickness.
Texture: light paper texture only inside the object.
Lighting: flat illustration, not realistic studio lighting.
Words: none; add all text later in the video editor.
Edges: leave generous clear space around the complete object.

A colour name in a prompt is a direction, not an exact brand-colour guarantee. If exact colour matching matters, recolour the accepted asset in an editor. Keep that corrected version as your reference.

Five original prompts to adapt

Replace the subject or direction before generating. These are starting points, not guaranteed instructions.

1. A pointer for a product detail

Create one curved arrow pointing down and left. Use a rounded, hand-drawn silhouette, warm orange fill and a dark charcoal outline. Keep the arrowhead clear and the whole arrow inside the frame. Use a plain, contrasting background that is easy to remove. Leave space around every edge. There are no letters, numbers or additional objects.

2. A reminder sticker without baked-in words

Create one rounded paper reminder sticker, viewed straight on. Warm white paper, a small folded upper corner and a charcoal outline. Keep the central area empty so I can add my own short text later. Use the same simple handmade style as the attached approved pointer. Show the complete sticker on a plain contrasting background.

3. A cutout based on an owned product photo

Use the attached product photograph as the reference. Create an isolated presentation of that same object, keeping its visible silhouette and material details as close to the reference as possible. Place the complete object on a simple contrasting background for later cutout work. Do not add decorative text. The supplied photo remains the authority for product details.

Inspect product accuracy before using this result. If the label or shape changes, use a cutout of the original photograph instead.

4. A small concept illustration

Create a single desk fan illustration for a tutorial about recording audio. Use a simple rounded silhouette, warm white blades, an orange base and charcoal outlines. Keep it readable when displayed small. Use the approved reference asset for the illustration style only. Plain contrasting background, complete object, no words.

5. A comparison bracket

Create one open rounded bracket that can sit beside a short list in a video. Dark charcoal outline with a small orange accent at the top. Front view, flat graphic style, no shadow extending far outside the bracket. Keep the middle empty. Use a plain contrasting background and include the whole shape.

Remove the background and verify the result

Do not assume that asking for “transparent PNG” creates a usable alpha channel. A model can draw white-and-grey squares as part of the picture. Those squares remain visible when the image is placed above video.

Remove the background in an image editor, refine the outline and export with transparency enabled. Adobe Express documents a no-fill background and Transparent PNG export for this job. Adobe background-removal guide

Then do a practical check:

1. Place the exported image over a solid black layer.
2. Repeat over a bright coloured layer.
3. Look for a rectangular background, pale fringe or missing interior holes.
4. Inspect both the full-size image and the small size you will use in the Reel.
5. Reopen the exported file; do not judge only the editor preview.

An image can be technically transparent and still have an ugly edge. Thin stems, hair, glass and soft shadows usually deserve closer inspection.

Build the Reel with editable pieces

Import each asset separately. Add labels as text layers so you can correct spelling, translate the Reel or reuse the artwork. Keep a pointer near the thing it identifies without covering that thing.

Start with the overlay still. Add a short entrance only if it makes the explanation easier to follow. Avoid animating every word and every sticker at once. Preview with your subtitles visible and check the actual placement in the destination app; interface elements can cover artwork near the edges.

Save a pack another editor can use

Use names that describe the job: pointer-down-left-orange-v01.png, reminder-blank-v01.png and fan-illustration-v01.png. Keep originals, cutouts and approved exports in separate folders. The download below includes a blank asset register and a filled example.

Before marking an asset ready, check ownership, factual accuracy, transparency, readable size and filename. A reusable pack is a few reliable pieces with clear purposes—not a folder full of attractive results nobody has checked.

OVERLAY PROMPT PACK
These are original production prompts, not generated or tested images.

BLANK STYLE CONTRACT
Series:
Viewer:
Mood:
Allowed colours:
Outline:
Texture:
Reference image and permission:
Text kept editable:
Actual model:
Interface:
Date:
Approved export folder:

PROMPT — POINTER
Create one curved arrow pointing [direction]. Use [fill], [outline] and [shape style]. Include the complete object with clear space around its edges. Plain contrasting background for removal. No words or additional objects.

PROMPT — EMPTY LABEL
Create one [shape] label with an empty centre. Match the attached approved style reference. Use [colours]. Keep all words out of the image; I will add them separately. Include the whole label on a plain contrasting background.

PROMPT — CONCEPT SYMBOL
Create one simple illustration of [concept]. Make its silhouette readable at small size. Match [style reference]. Plain contrasting background, complete object and no text.

PROMPT — PRODUCT
Use the attached owned product photograph as the reference. Keep the visible silhouette and details as close as possible. Plain contrasting background. Inspect the result against the original; use the original cutout if product details change.

ASSET REGISTER — blank
Filename:
Explains which sentence:
On-screen position:
Reference and rights:
Prompt:
Actual model / interface / date:
Generation result reviewed:
Product details approved:
Background removed:
Checked over black:
Checked over bright colour:
Checked at final small size:
Text remains editable:
Approved by:
Version:

FILLED PLANNING EXAMPLE
Filename: pointer-down-left-orange-v01.png
Explains: Put the microphone here, away from the fan.
Position: beside microphone, without covering it.
Reference: our approved house-style drawing.
Colours: warm orange and charcoal.
Result: not yet generated.
Transparency check: pending export.
Approval: pending; do not treat this row as a passed test.