The technical requirements are key for the mobile format, with the image needing to be perfectly sized in a vertical aspect ratio to accommodate the phone’s lock screen and home screen layout, ensuring the main subject—the anime girl—isn’t obscured by the clock, app icons, or widgets. Many popular choices focus on close-up or half-body portraits to maximize detail, or they leverage subtle background scenery like neon-lit cityscapes, starry skies, or cozy, rain-drenched windows to set a mood. The appeal lies in the character design itself, often featuring large, expressive eyes, distinctive hairstyles, and unique outfits that allow users to carry a piece of their favorite fictional world or desired atmosphere with them throughout the day.
