Broadcloth can be replaced with poplin, linens, twills, almost anything solid and non-stretch, really. Broadcloth is a pretty vague term now, it really just boils down to the quality of the broadcloth and $2/yard Joanns fodder is nasty and not worth the $2.
Peachskin technically refers to a finishing process on fabrics where they’ll brush the surface of the fabric with tiny metal combs to give the fabric a really soft and smooth texture. The peachskin fabric I used was a tight, polyester fabric with no stretch, but a very smooth and silky hand with a nice, semi-solid drape.
It can be a little hard to find because it falls under a few other names, but many other fabrics can be used for Lucina’s tunic as well! I’m just very fond of alternative fabrics and peachskin holds curves while draping so well. ;w;
I give myself half a yard of extra fabric.
These questions aren’t weird at all, haha!