Mord-Sith are strange warrior-inquisitor from Terry Goodkind’s Legend of the Seeker. I’ve not read the books but I’ve seen some of TV show and certainly recognise the leather outfit.
This is great cosplay. Mordsith Cara is clearly a fan of the series and knows her stuff. This couldn’t have been cheap cosplay either. It’s more than just the carefully worked leather as this costume has the stiching, buckles and belts that make the Mord-Sith really stand out.