doing the shadows on a sketch commission are fun. It's a pleasant mix of 100% opacity hard brush and gradients... really simple to work with The pose is harder hahah. Hence why for sketches I tend to try and stick with "standing there" even if inside I want to do something more.
I couldn't tell you. You'd have to ask her creator (the link to her account is in the artist comment) But I do know that her outfit isn't based on native american apparel, it's based on the red mage robe from the earlier final fantasy games