Create a brand-new English-language year-end promotion vertical poster in a lively comic style.
Accurately present the text “YEAR-END SALE”“UP TO 45% OFF”“SALE ENDS DECEMBER 31”.
Use cobalt blue, coral orange, mint green, cream white, and black.
Place a massive 45% discount, comic-style explosion patterns, speech bubbles, and layered coupon cards.
All text must be large, centered, and suitable for mobile reading.
Adopt a fresh composition, clean vector edges, and subtle printing textures.
Do not include brands, logos, URLs, QR codes, watermarks, or fine print.
Output a high-completion static PNG.
