Create a new original English giveaway poster with a dramatic prize reveal and centered hierarchy.
Style: premium festive 3D rendering, rich lighting, crisp display typography.
Layout: portrait 3:4 composition with a large title, open gift case, prize line, and deadline ribbon.
Main text: "GIVEAWAY ALERT", "WIN 12 VIP TICKETS", "ENTER BY 2026.08.31".
Language: English only; keep every phrase correctly spelled.
Design changes: use deep emerald, coral, champagne gold, and cream with abstract golden tickets and small stars.
Background: dark emerald celebration backdrop with coral ribbons and restrained confetti.
Remove: watermark, team mark, brand logo, QR code, website, author mark, and fine print.
Avoid: exact copying, original colors, random tiny text, misspelled text, and copyrighted brand elements.
