Craving individuality, sustainability, and creativity, intrepid sartorialists are taking their sewing projects to Instagram, serving homemade looks you could only dream of finding in stores. Whether they’re dusting off their childhood Singers or threading brand new Berninas, these stylish creators are making great things happen with fabric and sharing the details—from pattern numbers and modification tips to specific fabric choices and body measurements—so you can, too. Here are some of our favorite sewists (a new term that combines the words “sew” and “artist”) to follow,...