Create an original Happy Birthday image for BirthdayTo. Use case: a birthday party decoration concept with balloons, streamers, lights, and table decor. Style: retro risograph poster texture, limited colors, slight ink grain, bold shapes. Audience: modern, upbeat, social-media-native, stylish but not tied to a brand. Canvas: 16:9 aspect ratio, wide party decoration scene with layered balloons and festive depth. Palette: sky blue, lemon yellow, cloud white, and confetti red. Primary decorative focus: balloons, 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.
