There's actually a canon lore reason for this. The Captain uses a sword rather than a claymore so that he can move more fluently, the weight of a claymore would only add to how heavily he is weighed down by his huge balls.
im not even mad abt the visible shoulders because this little capelet looks so beautiful and it calls back to the coat that yelan stole!!! they remembered to include the fur!!
OH and the overall silhouette of her dress (and obviously tiara/headdress - believe its called a kokoschnik) is reminiscent of the dresses women wore in the tsar's court. they also include patterns inspired by the ones you'd see on the fabric of these dresses!!!