There are professional ways and means to copy garments. Claire Sheaffer's book "High Fashion Sewing Secrets From the World's Best Designers" has a chapter on how this is done. It's an oldie (and a goodie!) and should be available on Amazon. Yes , it is! https://www.amazon.ca/Fashion-Sewing-Secrets-Worlds-Designers/dp/1579544150/ref=pd_sbs_14_10?_encoding=UTF8&pd_rd_i=1579544150&pd_rd_r=35a7ff71-7152-11e9-88ae-891106fe0638&pd_rd_w=5ZWsG&pd_rd_wg=DvgdJ&pf_rd_p=5dcda75b-8643-4da3-9bb1-5c0233790500&pf_rd_r=3XCBGDYGENZN5DBSWS7G&psc=1&refRID=3XCBGDYGENZN5DBSWS7G