Bold abstract, funny composition in deep Pompey blue: a giant geometric cocktail glass built from climbing-wall polygons and chalky holds, rimmed by a golden crescent with a bright star as the garnish (subtle Portsmouth nod). Black-and-white cat silhouettes with angular tails scramble up ropes and holds, one dangling from a striped straw, another perched on a football-textured “ice cube.” Fluid wave curves suggest the harbor; crisp pitch lines and net patterns arc through the scene. High-contrast palette and dynamic brush-stroke textures, paint splashes, and inky motion lines; neon lime, coral, and electric cyan accents over royal blue, white, black, and gold. Keep it expressive, modern, and non-photoreal, with bold geometric shapes and energetic curves, full-bleed.

Include a small, cheeky caption, bottom-right, in bold hand-painted lettering (white with a thin gold outline for legibility):

Purrtsmouth Birthday: Sip, Climb, Score!

Generated with these themes: Portsmouth Football club, Black & white cats, Cocktails, climbing, and .

Made with ❤️ by AI.