Part of the challenge of the game is either finding matching sets of armor or trying to take the more dramatic scenes seriously in the most mismatched gear possible. Even a matching set on the wrong person can have hilarious consequences. (Morrigan wearing the Warden Commander armor yet complaining about the estate staff asking her for a change of clothing, for example.
Two minor gripes there, though.)
1. Why's Leliana got to be some kind of stripper? She's wearing more in that get up than your average non-JRPG pretty boy sword slinger (or Blades of Chaos swinger)or big buff brawler (any genre). Still, such outfits do bring attention to the utter indestructability of clothing items in most games, even swords and sorcery games. They don't even permanently stain, no matter how many gallons of blood spill on them, no matter how pristine white the garment started out.
2. Winged helmets aren't awesome? That's the only reason for a helmet to have wings, my good sir! If it's good enough for Captain America, it's more than good enough for the Grey Wardens!