I like the S4 shots where she wears the buttoned-down shirt but I hate the ones where she's sporting the light-blue tank top instead. Opposite reaction to the same pics.
I think it's the way her hair looks in the former that I really dislike and influences my overall opinion.
Did you find her hair worse in those shots than in the character promo photos for season 1 of V? I thought the styling of her hair looked really bad in those.