At the top of the Cartoon Style image, "Happy birthday Sam ❤️" in bold, spiky heavy‑metal lettering with a neon glow and tiny lightning‑bolt sparkles.

A playful cartoon scene with thick black outlines and bright saturated colors: inside a gothic sci‑fi gym that doubles as a metal concert stage, a hulking war‑knight in comically oversized, spiky power armor beams as he bench‑presses a ridiculous “barbell” made from a massive double‑headed warhammer fused to an electric guitar neck; the round weights look like glowing speaker cabs. He wears giant over‑ear headphones blasting tunes, with neon sound waves, musical notes, and crackling lightning bolts swirling around. A tiny green goblin‑ish spotter in gym shorts bounces beside the bench, throwing devil‑horn hand signs and banging a cymbal. Skull‑shaped kettlebells, spiky dumbbells, and a cupcake perched on a plate with a tiny flamethrower‑style candle add birthday chaos. Behind them, towering amp stacks and squat racks with pointed arches form a cathedral‑like backdrop; banners show crossed hammers and guitars (no words or logos). Confetti shaped like guitar picks rains down, sparks fly from the hammer, and bendy motion lines exaggerate the lift for comedy.

Style notes: playful cartoon characters, exaggerated proportions, thick outlines, saturated neon palette (electric blue, hot magenta, acid green, metal gold), dynamic low‑angle perspective, glossy highlights, energetic whimsical poses, clean vector‑style shading.

At the bottom in a small ribbon banner, add: "May your gains be as heavy as your metal!"

Generated with these themes: Warhammer, gym, music, heavy metal, and .

Made with ❤️ by AI.