At the top of the image, "Reuben, even the Emperor needs cake breaks – may your birthday be more immortal than a Primarch!"

- Illustrate a funny, cartoon-style Warhammer 40k scene with Reuben humorously reimagined as a towering, heavily-armored Space Marine sitting at a ridiculously tiny birthday party table.

- The table is overloaded with cupcakes, a massive birthday cake shaped like a bolter, and servitors wearing party hats trying to light candles with a plasma torch.

- A grumpy-looking Inquisitor in the background is reluctantly holding a balloon, and an ork is popping out of the cake yelling “WAAAGHpy Birthday!”

- Add small party details like purity seals dangling from streamers and servo-skulls holding slices of cake.

- Use a vibrant, colorful palette to contrast with the usual grim darkness of the far future – because even in the 41st millennium, birthdays are sacred.

Generated with these themes: Warhammer 40k.

Made with ❤️ by AI.