Pâtisserie Prism: Celebrating the Cream Puff 🎨🥐

A vintage French poster featuring an oversized gouache cream puff, adorned with delicate Art Nouveau linework, a powdered sugar halo, and a glossy custard cross-section highlight. The warm palette of café blue, cream, saffron, and rose gold accents is complemented by linen texture and subtle embossing. The composition centers the pastry with an elegant calligraphic banner above reading 'Joyeux National Cream Puff Day' and a sweet subline inviting local celebration: 'Celebrate with your local pâtissier.' 🎉🍰