Create a production thumbnail atlas for an image generation application. The fin...

Create a production thumbnail atlas for an image generation application. The final image must be exactly 2048x1152 pixels (16:9 aspect ratio). Create a strict 4×4 grid containing 16 independent thumbnail images. IMPORTANT GRID REQUIREMENTS: - The canvas is divided into exactly 16 equal rectangular cells. - Each cell is exactly 512x288 pixels. - Every thumbnail must fit completely inside one cell. - No image may overlap or bleed into neighboring cells. - Each cell must contain exactly one complete standalone image. - Maintain identical cell sizing across all 16 cells. - Use thin 2 pixel dark gray separator lines between cells to make extraction reliable. - Do not use decorative layouts, magazine compositions, posters, collages, or overlapping designs. - This is a technical asset sheet, not a presentation board. IMAGE REQUIREMENTS: - Each thumbnail should visually demonstrate one specific professional use case. - Each thumbnail should have a clear central subject. - Each thumbnail should remain understandable when cropped alone. - Use consistent visual quality and detail across all cells. - Do not place titles inside the thumbnails. COMPOSITION: - Every cell should have similar visual weight. - Keep important content away from the cell edges. - Leave approximately 5% internal padding inside each cell. - Use consistent lighting and professional presentation. The resulting image will be automatically cropped into 16 individual images using the fixed 512x288 pixel grid. Generate: 1. Product Studio Commercial product photography, isolated premium object, studio lighting, reflections, catalog quality. 2. Brand Campaign Luxury advertising image, emotional storytelling, commercial photography. 3. Packaging Design Finished retail package design, product container mockup, premium presentation. 4. E-Commerce Listing Marketplace product photography, clean background, multiple product angles. 5. Social Media Creator Engaging lifestyle content designed for social platforms. 6. Marketing Advertisement Commercial advertising composition with strong visual hierarchy. 7. Brand Identity Visual identity system, coordinated colors, brand materials. 8. Merchandise Design T-shirt graphic design, apparel mockup, wearable artwork. 9. Poster Design Professional promotional poster composition. 10. Video Thumbnail Creator High contrast attention-grabbing thumbnail composition. 11. Infographic Design Clean visual explanation graphic with icons and information structure. 12. App Promotion Mobile application showcase, device mockup, promotional design. 13. Retail Display Commercial product arrangement and merchandising display. 14. Influencer Content Lifestyle creator photography with social media aesthetic. 15. Product Launch New product announcement campaign image. 16. Brand Storytelling Narrative commercial image communicating brand identity.