Front and center of the greeting card, three cartoon cats are animatedly working out at a quirky gym, set against a backdrop that is a blend of comic strip aesthetics and exaggerated cartoon features.

**Foreground Elements:**

1. **Cat Trio:**

- The first cat, a stout tabby, dons a black and orange headband that dramatically exaggerates the size of its ears. Its whiskers are illustrated as spirals, adding a touch of whimsy. This cat is attempting to lift a set of cartoonishly oversized dumbbells, with exaggerated sweat drops comically flying off its forehead.

- The second cat, a lanky Siamese, wears an orange and black striped tank top. Its eyes are wide and expressive, borrowing from Charles Schulz’s iconic style. This feline is on a treadmill, its long legs comically extended in a mid-sprint, with a zigzag pattern beneath its feet to suggest rapid movement.

- The third cat, a fluffy Persian, is dressed in a leotard featuring a swirling pattern of black and orange, reminiscent of a Halloween theme. It is comically struggling with a yoga pose, limbs akimbo in a way that evokes R. Crumb’s expressive characters.

**Background Elements:**

- The gym is adorned with motivational posters, drawn in the style of Hergé’s clean lines, featuring phrases like "Purr-severe" and "Feline Strong" in bold, playful fonts. Each poster showcases mini cat characters performing various exercises, using visual gags typical of Bill Watterson’s work.

- To the left, a small rack holds a set of weights, each barbell ending in oversized, orange paw-shaped weights, a nod to Gary Larson’s humorous approach.

- On the right, a water cooler is humorously oversized, resembling a giant fishbowl with a goldfish swimming inside, a surreal touch akin to Winsor McCay’s dreamlike scenes.

**Color Palette:**

- The dominant colors are black and orange, with various shades used to create depth and contrast. The gym walls are a lighter orange, adorned with black stripes and cat-themed doodles, echoing Osamu Tezuka’s intricate attention to detail.

- Splashes of white are used sparingly to highlight features and add a crisp, clean feel reminiscent of Will Eisner’s graphic novels.

**Composition:**

- The scene is framed with a border of cartoon paw prints and stylized gym equipment, creating a cohesive and engaging layout. This border plays with the viewer’s eye, guiding it around the card in a manner similar to Art Spiegelman’s dynamic panels.

This design invites the illustrator to merge the playful spirit of cartooning with the lively energy of a gym setting, all through the lens of a cat-centric, comic-inspired world.

Generated with these themes: Three cats at the gym, and Black and orange colour theme.

Made with ❤️ by AI.