Create a centered t-shirt design in a vintage minimalist style using clean white line-art on a transparent background. At the center, include playful girl mama icons such as hair bows, hearts, sparkles, and shoes. Add subtle decorative touches like small stars or flowers to enhance the vintage look without cluttering the design. Use a retro serif or script font for the top arc text reading: “Girl Mama Life” and the bottom arc text: “Raising Sass & Sweetness”. All elements must be clean white line-art only with no fill, optimized for printing on dark shirts, with a fully transparent background.