So before you cut fabric and sew seams, you must solidify your ideas and create your own croquis. “Whether you’re working with seamstresses, pattern makers, fabric suppliers, or sales reps, croquis can help everyone visualize what a collection will be,” explains fashion designer and creative director Lynn Doherty. These expressive fashion illustrations bring an artist’s design to life. In fashion, a croquis is a quick sketch of an ensemble.