Oh yeah, whenever I see this, I am just in awe at the sheer variety of designs.. Outfits are something that is especially difficult for me to come up with, so seeing all this is pretty inspiring! Really amazing work^^

I have a small stack of fashion books to draw inspiration from. That was a big help! There's a plethora of ancient history fashion and folk costume books out there that are worth looking into, and are probably borrowable on archive.org.