A festive and vibrant 3D Pixar-style digital illustration celebrating a 9th birthday. In the center, the name 'Denis' is written in big, colorful, glowing 3D letters. A large, delicious birthday cake with a glowing candle in the shape of the number '9' sits nearby. The background is filled with colorful balloons, floating confetti, and sparkling lights, creating a magical, joyful, and celebratory atmosphere. Bright and cheerful lighting.
