Use the reference character [image] to create a highly decorative "Happy Birthday" illustration celebrating Hatsune Miku's birthday.
The reference image is for character identity only. Preserve the character's face, hairstyle, hair color, eye color, outfit identity, and key visual traits.
Do NOT preserve the original pose, body posture, hand position, facial expression, camera angle, framing, body direction, or composition. Create a noticeably different pose, expression, and composition from the reference image every time.
Include the date "8月31日" (August 31st) displayed elegantly and subtly as part of the design, without turning it into a calendar, schedule, or date-heavy graphic.
Keep readable text minimal — only a short celebratory phrase such as "Happy Birthday" together with "8月31日", rendered in delicate, refined typography. Do NOT include long paragraphs, category lists, bullet-point text blocks, or information-dense layouts.
Design the image to feel elegant, festive, and delicate rather than busy or meme-like. Vary the fortune-telling and internet-culture elements from the original template — replace them with celebratory motifs instead: flower petals, ribbons, candles, cake, balloons, light particles, sparkles, and soft glowing effects.
Vary the character's pose, expression, composition, color palette, background, and decorative details naturally between generations. Do not repeat the same pose or layout twice.
The character's expression and body language should naturally convey joy, celebration, and elegance, while keeping the overall image cute, graceful, and shareable.
Create a soft, whimsical, refined design inspired by elegant birthday illustrations, floral and lace ornamentation, sparkling light effects, and celebratory color palettes — moving away from the retro-variety-show, meme-heavy aesthetic of the original template.
Optionally include a few small chibi versions of the same character with birthday-related actions (holding a cake, releasing balloons, scattering flower petals) placed subtly around the main illustration, without overwhelming its delicate tone.
Use a refined layout with ribbons, lace, flowers, stars, sparkles, and soft decorative frames — prioritizing balance between decoration and negative space rather than dense information panels.
Do not copy the reference image's original pose or composition.
All readable text must be written in Japanese.
Do not include weekday, year, calendar, or schedule information — only the date "8月31日" as a stylized design element.
