Generate an image of a joyful birthday card design that incorporates cute vector illustrations such as a small teddy bear holding a cupcake, balloons wearing happy faces, and a flag banner that proclaims 'Happy Birthday!' The color scheme is soft and merry, featuring pastel hues like baby blue, blush pink, and canary yellow. The design integrates learning elements subtly, for instance, having numerals on the balloons for children to practice counting, and building blocks arranged to spell the word 'Celebrate'. The overall ambiance should be a harmonious blend of jubilation and educational stimulation.

Generated with these themes: Cards, and Learning.

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