well the armour in that picture is just stupid. not even sexy. Take my two characters here
My Arcane Knight and my Martial arts mage.
As you can see the Arcane knight is indeed wearing Practical armour that has that nice feminine flair. Yes there is exposed skin but her armour is enchanted with mage Armour. Yes she has heels, no I don't care what you think.
My Martial arts mage. her dress allows fluid movement. though it should be better connected to the shoulders so it doesn't fall down during combat. Her heels are thick and she is trained in martial arts. she can fight standing on one foot on top of a bamboo pole so heels are no issue for her. Also considering she has access to fire and air magic. she would really only be going melee against things that aren't a major threat to her. or she has run out of mana. She is basically a fire bender.