White Speakers use "blood magic" and this is their ritual garb. I don't know anything about Kingdom Death and it took me two minutes to find that information through Google. Now, for the ones holding swords who are also scantily clad (as with my personal favourite, the Twilight Knight), you could have a good point.
Don't complain for the sake of complaining. There is obvious skill in the artwork, and you should keep in mind the average consumers of these kind of games.
No offense, but it seems to me, the pelvis anatomy is wrong here: the legs can't be twisted to one side, while the torso to the other. Thigh don't turn like this. The only place human body can twist in is the waist. Check it in the mirror Hope that helps! and good luck