Create a vibrant colorful 3D promotional poster for a baking workshop titled: ‘Sivakasi Academy & Namu’s Cake & Me jointly presents Birthday Cake Workshop’. The scene should show three happy women in a cake decorating class, standing around a table and enjoying making a birthday cake together. They should be smiling, laughing, and decorating cakes with piping bags and frosting, wearing cute aprons and chef hats. Place a beautiful 3D birthday cake with candles in the center of the table, surrounded by cupcakes, icing bowls, spatulas, sprinkles, piping bags, and baking tools. The environment should look like a bright, cheerful baking studio with balloons, confetti, colorful frosting swirls, and floating dessert elements. Use pastel colors like pink, yellow, mint green, lavender, and sky blue. The style should be playful, glossy, cartoon-style 3D (Pixar-like) with soft lighting and a festive atmosphere. Make the poster Instagram-ready, professional, and eye-catching, with space for the title text at the top and workshop details at the bottom.