Create a chic and stylish half-bath with French Mid-Century Modern elements. Use a warm and neutral color scheme with pops of rich, bold colors like navy or emerald green. Choose a compact, wall-mounted vanity with a sleek design and a polished wood finish. Install a round, frameless mirror with a thin brass frame to add a touch of elegance. Use geometric or patterned wallpaper to create visual interest and add a modern touch to the small space. Opt for brass or gold fixtures to complement the mid-century aesthetic. Add a few minimalistic decor items, such as a small vase with fresh flowers or a simple framed print, to enhance the space without overwhelming it. Incorporate stylish wall sconces with a retro design to provide warm, flattering light.