Pop-Art Warhol Grid

Transform the uploaded photograph into a POP-ART WARHOL-style birthday grid of the person.

LIKENESS THROUGH STYLE (face match is priority): render in bold 1960s pop-art (flat posterised colour, thick outlines, Ben-Day dots) BUT keep the person RECOGNISABLE — keep face shape, key features, hairstyle (pop-art simplifies, but it must still read as this person). Apply uniformly. [Multiple people: each from own upload; never blend.]

Layout: a 2×2 (or 3×3) GRID of the SAME portrait, each panel in a different clashing neon colourway (hot pink, cyan, yellow, red); bold "HAPPY BIRTHDAY Sivakarthikeyan" type and a giant "41" as graphic elements; high-contrast, flat, iconic.

TEXT: keep all on-image text short, large, and legible; invented logos/brands only.

Output: a bold pop-art birthday grid, 1:1 or 4:5. No watermark.