Create a vibrant and playful birthday illustration. Central to the scene is a charming monkey adorned with a party hat, all grin and mischief, and grasping a bouquet of multi-hued balloons. Standing right next to the monkey is a kind-hearted sister character of South Asian descent, her face glowing with love and affection. She presents a birthday cake festooned with candles shaped into the number '18', symbolic of this festive milestone. Surrounding them, the background explodes with a shower of confetti and coils of streamers to intensify the atmosphere of jubilant celebration.

Generated with these themes: Monkey, Sister, and 18.

Made with ❤️ by AI.