For this whimsical birthday greeting card, envision a delightful hand-drawn illustration that combines elements from the artists mentioned, creating a vibrant yet intricate scene.

**Foreground Elements:**

1. **The Tabby Boy Cat:**

- The tabby cat, with distinctively patterned orange and brown stripes, should be seated gracefully on a prominent rock, gazing out as if curiously surveying the scene.

- His stomach is pure white, soft and fluffy, providing a charming contrast to his vibrant tabby stripes.

- His eyes are a striking green, with delicate whiskers that are thin and wispy, catching the light.

- Around his neck is a small, shiny red bow-tie that stands out against his fur.

2. **The Grey Girl Cat:**

- She should have soft, subtle stripes across her sleek, grey coat, like silver streaks running along her back and tail.

- Her eyes are a warm amber, and her ears perked up attentively, giving her a lively appearance.

- She is positioned playfully to the side of the tabby, perhaps batting gently at a small, fluttering butterfly with her delicate paw.

- A delicate pink collar with a tiny silver bell encircles her neck, adding a sweet touch.

**Background Elements:**

- **Los Angeles Skyline:**

- The skyline of Los Angeles is sketched in the distance, capturing iconic structures like the Griffith Observatory and the tall, slender palm trees that sway in a gentle breeze.

- The horizon line should be punctuated by the faint outline of mountains, perhaps the Santa Monica Mountains, rendered in soft hues of blue and purple.

- **Nature and Flora:**

- Surrounding the cats, the ground is lush with intricately drawn wildflowers, featuring daisies and poppies, each petal delicately shaded.

- Tiny tufts of grass, varying in shades of green, surround the wildflowers, gently leaning in one direction as if caught in a gentle breeze.

- **Color Palette:**

- The color scheme is vivid yet gentle, with a pastel sky transitioning from a bright blue to a soft peach, hinting at a sunrise or sunset.

- The flowers and grass feature muted earth tones, adding depth to the scene without overpowering the central figures.

- In the sky, soft, wispy clouds are lightly brushed, adding an ethereal quality.

**Overall Composition:**

- **Artistic Style:**

- Draw inspiration from the detailed textures of Arthur Rackham and the playful charm of Beatrix Potter, with each element meticulously detailed yet possessing a storybook quality.

- The illustration should balance realism with whimsical elements, using the distinct line work reminiscent of Quentin Blake to add a lively touch to the characters.

This scene creates a captivating birthday card cover, inviting the viewer into a storybook moment filled with the wonder of a magical birthday in the heart of Los Angeles.

Generated with these themes: Happy birthday, One tabby boy cat with a white stomach, Los angels, and One grey girl cat stripy.

Made with ❤️ by AI.