social.gl-como.it

(the site looks semi-dead, but tracing your own picture to make a croquis in your own body shape looks a pretty good idea, and on that page there are instructions on how to take the picture.

via: https://thepragmaticcostumer.wordpress.com/2018/01/22/getting-your-ideas-on-paper-using-croquis-to-design-your-historical-gowns/