**Front Cover Design:**

The greeting card front cover should be a hand-drawn, surreal composition blending themes from football culture, car enthusiasm, and financial investment, interconnected through a whimsical Venn diagram of three interlocking circles. Each circle is a vibrant hue: emerald green for 'Football Chav', a deep metallic blue for 'Petrol Head', and rich gold for 'Investor Extraordinaire'.

**Football Chav Circle:**

Within the emerald green circle, illustrate a detailed football pitch with tiny, animated figures kicking around a flaming football. Scattered on the grass are football scarves, hats, and cans of fizzy drinks, rendered in a sketchy style reminiscent of Quentin Blake's loose and energetic line work. The edge of this circle is lined with sneakers and goalposts.

**Petrol Head Circle:**

The deep metallic blue circle should house a sprawling, imaginary car engine made of interwoven parts from classic sports cars. Use the style of intricate detail seen in Arthur Rackham's work, with chrome exhaust pipes spiraling like serpents and headlights that resemble curious, observing eyes. Include road signs and racetracks looping through the engine's design.

**Investor Extraordinaire Circle:**

In the gold circle, depict a bustling, surreal stock exchange floor filled with floating banknotes, ticker tapes forming intricate patterns in the air, and anthropomorphic piggy banks in suits. Use the rich, illustrative style of Maxfield Parrish to bring opulence and depth, painting the scene with golden glows and intricate architectural elements like grandiose columns and arches.

**Background Elements:**

Set these circles against a backdrop of a vast, star-studded cosmos inspired by the detailed skies of Gustave Doré, where the stars twinkle like tiny, mischievous eyes. Around the edges, add delicate, swirling clouds using the detailed line work reminiscent of Aubrey Beardsley.

**Text Element:**

Floating above the central Venn diagram, a bright red and white striped hot air balloon carries a whimsical banner, its ends fluttering in the cosmic breeze. On this banner, written in an elegant, hand-drawn font inspired by Edward Gorey's typography, are the words "Happy Big 50 Alex". The letters appear to be formed from tiny footballs, steering wheels, and golden coins, each adding to the card's intricate, playful charm.

Generated with these themes: Venn diagram with 3 circles, Investor extraordinaire , Football chav, Petrol head , , and .

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