Aquarium Garden Eel Day

Create a polished vertical anime illustration inside a modern public aquarium on the morning of 11月11日. Show exactly two main characters standing before a huge curved glass tank filled with blue water, rocky reef formations, bright caustic sunlight, scattered tiny fish silhouettes, and exactly 16 visible spotted garden eels rising from the sandy bottom. On the left is a tall gentle cow-girl character named Muumuu Bell with very long pale lavender-white hair tipped turquoise, small tan cow horns, cow ears, golden-brown eyes, a soft curious smile, one finger near her mouth, a large gold cowbell at her neck, a sleeveless white cow-print top, pale shorts or mini skirt with blue trim, white thigh-high cow-print stockings, a black oversized jacket slipping from her shoulders, and a thin cow tail with a black tuft. On the right is a shorter adventurous cat- or wolf-eared boy with sandy blond hair, amber eyes, animal ears, fluffy brown tail, dark brown expedition coat, red scarf, black gloves, utility belts, pouches, backpack, small tools, and a long rifle-like prop strapped to his pack; he points excitedly toward the garden eels. Add a warm glowing rounded sign in the upper left with Japanese text: title 穴子の日, a smaller date, a simple eel icon, and a small subtitle meaning “rediscover the charm of garden eels.” Add handwritten white Japanese greeting text おはよう with a small sun doodle near the bottom right on the aquarium floor or glass. Cinematic composition, tank rim light, detailed anime rendering, expressive faces, high-detail accessories, deep blue aquarium ambience, warm sign light, no extra characters, no watermark.