Re Breasts: I don't think it's a bad thing, it's only something in my mind because Miriam reminds me of Shanoa, my favourite female protagonist of any game (Samus and the FFXIII sisters being next in line). Shanoa was also living/ animated proof that a woman can be 'hauntingly' beautiful, strong, and stil appear feminine while having a very small chest.
I don't think size matters, that's all. Although I like breasts, I've always been one to prefer a body that wears anything, even bereft of dual side air bags.