Okay...let me see if I understand this correctly. People are pissed that a cosplayer did a "sexy" version of a Lich Queen armor for some reason and think that she should cover herself up. Yet if this woman were to dress in a miniskirt, heels, and a low cut top and be catcalled I'm willing to bet many of those criticizing her would likely cry sexism and leap to her defense saying she had a right to wear what she wanted.
Well she's a cosplayer, and she has the right to make a sexy version of a character if that's what she wants to do. I thought she was very attractive but I wasn't thinking with my privates either, she didn't have the best costume but she had her own spin on it and that's all that matters.