Create an original Happy Birthday image for BirthdayTo. Use case: a birthday story image for mobile sharing with a clear top-to-bottom focal flow. Style: kawaii pastel illustration, cute rounded details, cheerful soft palette. Audience: fun, casual, energetic, and easy to share. Canvas: 9:16 aspect ratio, vertical mobile story composition with generous safe margins. Palette: raspberry pink, buttercream white, warm gold, and soft coral. Primary decorative focus: birthday cake, 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.
