**Image Prompt:**

In a whimsical, hand-drawn illustration style, imagine a magical pool party scene set in a hidden corner of the Hogwarts grounds. The scene features a vibrant, rainbow-maned unicorn lounging by a shimmering, enchanted pool. The unicorn is playfully floating on a pool noodle shaped like a broomstick, complete with golden snitches as pool floaties.

In the background, you can see the iconic Hogwarts castle towering over the pool, with its turrets and towers casting enchanting shadows. The pool itself is a mystical blend of blues and greens, reflecting the magic of the setting. Around the pool, a few small, friendly creatures, like pygmy puffs and owls, are enjoying the sun and frolicking on the grass.

Above the scene, in whimsical, hand-lettered script, add the text: "Wishing You a Magical Birthday Splash!"

The overall color palette is warm and inviting, with rich purples, golds, and blues, accented with the shimmering textures of magic. This composition captures a sense of wonder, fun, and enchantment, perfect for a unique birthday greeting.

Generated with these themes: Harry Potter, Unicorns, Pool, and .

Made with ❤️ by AI.