How to Plan Website Hero Images with Nano Banana

A beautiful image can still be the wrong image for a homepage. The subject sits behind the headline, a mobile crop removes the useful detail, or the palette competes with the primary button. By the time these problems appear in the page builder, the team may already be attached to the picture.

Working with Nano Banana starts more productively when the layout comes first. Write down what the hero must communicate, where the text belongs, and how the composition should change on smaller screens. Then use image generation to explore that brief. The following example uses a fictional ceramics workshop preparing a website for its weekend classes.

Start with the page’s actual promise

The workshop wants visitors to book a beginner session. Its hero needs to make the activity approachable and show what someone might do there. An elaborate gallery of finished sculptures would suggest a different experience. A close view of hands shaping a simple bowl is a more relevant direction, provided the image is clearly illustrative and does not pretend to document a real class.

Write a one-sentence brief before opening an image tool: “Show the calm, hands-on experience of a beginner pottery workshop, with room for a short booking message.” This sentence becomes the basis for judging results. If a striking image does not support it, put that image aside.

Gather a few references that you own or have permission to use: the workshop’s colour palette, a photograph of its actual room, and examples of its pottery. Keep these references separate from photographs of other businesses. Otherwise, a pleasing visual direction can accidentally imply facilities or products the workshop does not offer.

Sketch the empty spaces before the subject

Place rough rectangles for the heading, supporting sentence, and booking button in your page design. Mark the area available for the image’s focal point. On a wide layout, text might occupy the left side while the activity sits on the right. The boundary between them should remain visually quiet.

For the workshop, specify a cream background, muted terracotta accents, and hands working near the right third of the frame. Avoid scattering tools across the left side simply to make the scene look busier. Negative space has a job: it gives the message somewhere to live.

Design the narrow layout at this stage too. Perhaps the text will sit above the image instead of overlaying it. That choice changes the image brief because the mobile version no longer needs a large empty area beside the subject. Record both compositions rather than hoping one wide picture will survive every crop.

Turn the layout into a useful image prompt

The independent website’s BananaNano image tools provide text-to-image and image-editing entry points for exploring Nano Banana visuals. Start with the mode that matches the task, and check the selected model and available controls before generating. A page name alone does not establish which model is currently selected.

A first prompt for the fictional workshop could read: “Editorial illustration for a beginner pottery workshop. Close view of adult hands shaping a small unfinished clay bowl on a worktable. Warm cream and terracotta palette. Place the activity on the right, leaving the left area simple and uncluttered. Gentle daylight. No lettering, logos, or finished luxury products.”

Treat this as a design hypothesis. It does not guarantee accurate hands, plausible tools, or suitable spacing. Review each result against the layout sketch, then request one clear change at a time. “Move the bowl farther right and simplify the left background” is easier to assess than “make this more professional.”

Review the image inside the page

Insert a candidate into the actual hero section with the real headline and button. A standalone preview cannot reveal whether the text collides with a hand, whether the button loses contrast, or whether the image makes the page feel crowded.

Inspect the worktable and tools carefully. Count fingers, check how hands meet the clay, and look for objects that merge into each other. An atmospheric image may hide these defects at first glance. Reject confusing anatomy or implausible equipment instead of explaining it away as style.

Keep the heading and booking details as editable page text. Baking them into the artwork makes later copy changes and responsive layouts harder to manage. It also means the image itself has to carry information that should remain available independently of the picture.

Make the mobile composition a separate decision

Try the narrowest layout your site supports, followed by intermediate widths. Watch the focal point as the container changes shape. A bowl that remains visible is not enough if both hands disappear and the activity becomes unclear.

Where the crop fails, make a separate composition with a tighter view of the same activity. Use the same palette and visual treatment, but allow the objects to move. Matching the purpose and mood matters more than preserving every background detail.

Responsive-image guidance on MDN distinguishes choosing an appropriately sized image from changing the composition for a different screen. Apply that distinction in your theme or page builder: smaller files address delivery size, while a separate crop or artwork addresses what visitors actually see. Confirm which controls your particular theme exposes.

Prepare an asset the next person can maintain

Export for the dimensions the page actually displays, then compare the compressed version with the original. Look at edges, clay texture, and smooth backgrounds for visible damage. There is no single file-size target that suits every layout; measure the page with the chosen asset in place.

Give each version a descriptive name, such as “pottery-workshop-hero-desktop-v02.” Store the approved prompt, source references, and mobile companion alongside it. This lets a future editor understand why the subject sits where it does instead of regenerating the entire visual from memory.

Choose alternative text according to the image’s role. If it conveys useful information, describe that information plainly. If it is purely decorative and the nearby text already provides the message, use the site’s decorative-image treatment. Do not turn the description into a list of search keywords.

The final review belongs in the working page: readable message, visible action, believable image, and a useful composition at each screen size. Nano Banana supplies visual possibilities. The designer still decides whether those possibilities help a visitor understand the workshop and take the next step.