Create an original Happy Birthday image for BirthdayTo. Use case: a clean birthday desktop wallpaper background with festive but calm composition. Style: kawaii pastel illustration, cute rounded details, cheerful soft palette. Audience: kid-friendly, playful, bright, sweet, and safe without licensed characters. Canvas: 16:9 aspect ratio, wide wallpaper composition with negative space and no UI clutter. Palette: sky blue, lemon yellow, cloud white, and confetti red. Primary decorative focus: ribbon streamers, supported by birthday party details. Text requirement: include only the exact readable words "Happy Birthday"; no misspellings, no fake names, no dates, no small filler text. Composition requirement: high-quality finished image, clear focal point, clean margins, useful copy space, no watermark. Safety requirement: no recognizable real people, no celebrity likeness, no public figure, no brand logo, no trademarked character, no copyrighted character, no visible address, no license plate, no private-property identifier.
