I made this Quistis cosplay for a bridesmaid at a Final Fantasy themed wedding. (I also made Blue Mage and Fang costumes for the wedding.)
Instead of the traditional black SeeD uniform, we opted to make hers in shades of blue more appropriate to a wedding. The jacket and skirt are made from cotton twill edged with homemade satin bias tape. I doodled the design for the lapels, then scanned the design to create an embroidery file. I also made the tie.
I designed and 3D printed the tie clip, then printed and applied a Balamb Garden sticker to it, and sealed everything with varnish.