It's odd that people keep looking at exaggerated armors and talking about realism. I think that's a red herring: how those armors relate to our reality is secondary to how those armors relate to the fantasy world. That is, the giant pauldrons are not silly because they're not consistent with the rules our world, they're silly because they're not consistent with the rules of the fantasy world. What are they protecting against? How does the person they move in it? Why is there a bare spot on the other side -- you're armored here, so aren't you worried about being struck there as well?
Obviously, there's no absolute scale here (yay, rule of cool), but the further you get from consistency with the setting and the internal consistency of the armor design, the more unappealing it becomes to players. The blanket reason you'll get is "unrealistic", but I think many gripes are not about realism. Often, boob armors are juxtaposed with terribly natural and reasonable armors, calling attention to their impracticality. Why is he covered and she's not? If you had men storming the battlefield in their birthday suits like the
Gaesatae, I don't think people would bat an eye at the women in skimpy outfits. Well, not any more than the men.
That wigned helm is based on the Prankhe helm ... which can be seen at the Germanisches Nationalmuseum, Nürnberg It is a real helm.
Dress helm, more importantly. (Refer to last paragraph for more.)
So good for you for finding pictures of armor that are both pretty and practical. How about attempting an archetype that's actually difficult? A seductive character? A cat thief? A notive who would probably look out of place wearing heavy armor? A prostitute? A druid or a priest? A criminal? A barbarian?
Cat burglars, prostitutes, and priests don't fight wars. If they did, they'd put on the best armor they could find and look like anyone else on the battlefield. I don't have a problem with whatever style you want outside of the battlefield -- maybe it's crass and tasteless, but I like silly boob windows -- but when you're going to be target practice for a team of archers, you don't do so in a halter top and miniskirt. At least you could justify that Isabela is tagging along with a (rather dangerous) friend and not going to a battlefield. In DA:I, everyone is going to war, and they all know it.
Here are some of my favorites (female armors, that is) that, in my opinion, are practical and aesthetically pleasing. Biggest issue is the long flowing hair in all of them.

I like it, except that she looks a bit narrow. Protective, yet dignified. Now, I'd be willing to overlook the impracticality of the cloth flowing from the lower half. When it comes to impractical dressings on top of a practical armor set, it doesn't really seem too wrong, does it? I think most players would be much more willing to accept what amount to slightly impractical dress armor and weapons out of appeal to aesthetics. Where you run into trouble are things that fail to accomplish their task (steel bikini) or which fail to be aesthetically-pleasing in the exaggeration (giant pauldron). Easier to add than to take away, really.