TL;DR: How Do I Get Better Images from Gemini 2.5 Flash?
To get the best results from Gemini 2.5 Flash, you need to be descriptive and provide context. Instead of just listing keywords, write a narrative paragraph that describes the scene in detail. Think like a photographer or an artist, and you'll get much better results.
What is Gemini 2.5 Flash and Why Should My Business Care?
You've probably heard about AI that can create images from text. Well, Google's Gemini 2.5 Flash (sometimes called Nano Banana) is the next evolution of that technology. It's a natively multimodal model, which is a fancy way of saying it was built from the ground up to understand both text and images at the same time.
This is a big deal for businesses because it opens up a world of possibilities for creating custom visuals without needing a graphic designer. You can create:
- Text-to-image: Generate high-quality images from simple or complex text descriptions.
- Image + text-to-image (editing): Provide an image and use text prompts to add, remove, or modify elements, change the style, or adjust colors.
- Multi-image to image (composition & style transfer): Use multiple input images to compose a new scene or transfer the style from one image to another.
- Iterative refinement: Have a conversation to progressively refine your image over multiple turns, making small adjustments.
- Text rendering: Generate images that contain clear and well-placed text, ideal for logos, diagrams, and posters.
How Do I Write Prompts That Get Good Results?
The most important thing to remember is to describe the scene, don't just list keywords. Gemini 2.5 Flash has a deep understanding of language, so a descriptive paragraph will almost always produce a better image than a list of disconnected words.
How Do I Create Photorealistic Scenes?
To get realistic images, you need to think like a photographer. Mention camera angles, lens types, lighting, and fine details.
Template:
A photorealistic [shot type] of [subject], [action or expression], set in [environment]. The scene is illuminated by [lighting description], creating a [mood] atmosphere. Captured with a [camera/lens details], emphasizing [key textures and details]. The image should be in a [aspect ratio] format.
Example prompt:
A photorealistic close-up portrait of an elderly Japanese ceramicist with deep, sun-etched wrinkles and a warm, knowing smile. He is carefully inspecting a freshly glazed tea bowl. The setting is his rustic, sun-drenched workshop. The scene is illuminated by soft, golden hour light streaming through a window, highlighting the fine texture of the clay. Captured with an 85mm portrait lens, resulting in a soft, blurred background (bokeh). The overall mood is serene and masterful. Vertical portrait orientation.
How Do I Create Stylized Illustrations & Stickers?
If you need stickers, icons, or other assets for your projects, be explicit about the style and remember to request a white background if you need one.
Template:
A [style] sticker of a [subject], featuring [key characteristics] and a [color palette]. The design should have [line style] and [shading style]. The background must be white.
Example prompt:
A kawaii-style sticker of a happy red panda wearing a tiny bamboo hat. It's munching on a green bamboo leaf. The design features bold, clean outlines, simple cel-shading, and a vibrant color palette. The background must be white.
How Do I Add Accurate Text to Images?
Gemini 2.5 Flash can also render text within images. Be clear about the exact text you want, describe the font style, and set the overall design.
Template:
Create a [image type] for [brand/concept] with the text "[text to render]" in a [font style]. The design should be [style description], with a [color scheme].
Example prompt:
Create a modern, minimalist logo for a coffee shop called 'The Daily Grind'. The text should be in a clean, bold, sans-serif font. The design should feature a simple, stylized icon of a coffee bean seamlessly integrated with the text. The color scheme is black and white.
How Do I Create Product Mockups & Commercial Photography?
You can create clean, professional product shots for your e-commerce store, ads, or branding materials.
Template:
A high-resolution, studio-lit product photograph of a [product description] on a [background surface/description]. The lighting is a [lighting setup, e.g., three-point softbox setup] to [lighting purpose]. The camera angle is a [angle type] to showcase [specific feature]. Ultra-realistic, with sharp focus on [key detail]. [Aspect ratio].
Example prompt:
A high-resolution, studio-lit product photograph of a minimalist ceramic coffee mug in matte black, presented on a polished concrete surface. The lighting is a three-point softbox setup designed to create soft, diffused highlights and eliminate harsh shadows. The camera angle is a slightly elevated 45-degree shot to showcase its clean lines. Ultra-realistic, with sharp focus on the steam rising from the coffee. Square image.
How Do I Create Minimalist & Negative Space Designs?
If you need backgrounds for your website, presentations, or marketing materials where you plan to overlay text, you can create minimalist designs with plenty of negative space.
Template:
A minimalist composition featuring a single [subject] positioned in the [bottom-right/top-left/etc.] of the frame. The background is a vast, empty [color] canvas, creating significant negative space. Soft, subtle lighting. [Aspect ratio].
Example prompt:
A minimalist composition featuring a single, delicate red maple leaf positioned in the bottom-right of the frame. The background is a vast, empty off-white canvas, creating significant negative space for text. Soft, diffused lighting from the top left. Square image.
How Do I Create Sequential Art (Comic Panels / Storyboards)?
You can create compelling visual narratives, panel by panel, which is ideal for developing storyboards, comic strips, or any form of sequential art.
Template:
A single comic book panel in a [art style] style. In the foreground, [character description and action]. In the background, [setting details]. The panel has a [dialogue/caption box] with the text "[Text]". The lighting creates a [mood] mood. [Aspect ratio].
Example prompt:
A single comic book panel in a gritty, noir art style with high-contrast black and white inks. In the foreground, a detective in a trench coat stands under a flickering streetlamp, rain soaking his shoulders. In the background, the neon sign of a desolate bar reflects in a puddle. A caption box at the top reads "The city was a tough place to keep secrets." The lighting is harsh, creating a dramatic, somber mood. Landscape.
How Do I Edit Images with Text?
This is where Gemini 2.5 Flash's multimodality really shines. You can provide one or more images alongside your text prompts for editing, composition, and style transfer.
How Do I Add & Remove Elements from an Image?
Provide an image and simply describe the change you want. The model will analyze the original image's style, lighting, and perspective to make the edit look natural.
Template:
Using the provided image of [subject], please [add/remove/modify] [element] to/from the scene. Ensure the change is [description of how the change should integrate].
Example prompt:
Using the provided image of my cat, please add a small, knitted wizard hat on its head. Make it look like it's sitting comfortably and matches the soft lighting of the photo.
How Do I Edit a Specific Area of an Image (Inpainting)?
You can tell Gemini 2.5 Flash to edit only one part of an image while leaving the rest completely untouched.
Template:
Using the provided image, change only the [specific element] to [new element/description]. Keep everything else in the image exactly the same, preserving the original style, lighting, and composition.
Example prompt:
Using the provided image of a living room, change only the blue sofa to be a vintage, brown leather chesterfield sofa. Keep the rest of the room, including the pillows on the sofa and the lighting, unchanged.
How Do I Transfer the Style of One Image to Another?
Provide a photo and ask the model to recreate its content in a specific artistic style.
Template:
Transform the provided photograph of [subject] into the artistic style of [artist/art style]. Preserve the original composition but render it with [description of stylistic elements].
Example prompt:
Transform the provided photograph of a modern city street at night into the artistic style of Vincent van Gogh's 'Starry Night'. Preserve the original composition of buildings and cars, but render all elements with swirling, impasto brushstrokes and a dramatic palette of deep blues and bright yellows.
How Do I Combine Multiple Images into a New One?
Provide multiple images as context to create a brand new, composite scene. This is perfect for product mockups or creative collages.
Template:
Create a new image by combining the elements from the provided images. Take the [element from image 1] and place it with/on the [element from image 2]. The final image should be a [description of the final scene].
Example prompt:
Create a professional e-commerce fashion photo. Take the blue floral dress from the first image and let the woman from the second image wear it. Generate a realistic, full-body shot of the woman wearing the dress, with the lighting and shadows adjusted to match an outdoor environment.
What Are Some Best Practices for Prompting?
- Be hyper-specific: The more detail you provide, the more control you have.
- Fix character consistency drifts: If a character's features start to change after many edits, start a new conversation with a detailed description to get back on track.
- Provide context and intent: Explain the purpose of the image.
- Iterate and refine: Don't expect a perfect image on the first try. Use the conversational nature of the model to make small changes.
- Use "semantic negative prompts": Instead of saying "no cars," describe the desired scene positively: "an empty, deserted street with no signs of traffic."
- Control the camera: Use photographic and cinematic language to control the composition.
Are There Any Limitations?
While Gemini 2.5 Flash is a powerful tool, it's not perfect. You may find that generating complex typography or maintaining absolute consistency of character features across multiple images sometimes needs refinement through follow-up prompts.
How Can I Use Gemini 2.5 Flash with MindPal?
MindPal's no-code platform makes it easy to integrate powerful AI models like Gemini 2.5 Flash into your business workflows. You can build AI agents that automatically generate images for your marketing campaigns, social media posts, or product listings.
Ready to start creating your own AI-powered visuals? Sign up for MindPal today!