The glass manipulation concept is pretty sweet, and I like how you're incorporating stained glass patterns into her clothing.
From your last image though, I feel her costume is too plain for a champion. As of now, she looks more like a random NPC. I prefer the designs from your very first batch of designs (labeled A B C D), where her costumes have more details incorporated. I think she looks better with short sleeves too.
Definitely add her weapon as well into the design, even if its just hanging on her back or held in her hand. Keep it up! ^^