Love It or Hate It? Sienna Miller's Bold Look

At this weekend's Valentino gala, Sienna stepped away from her normal low-key hair and makeup in a big way. Her dark brows, red lipstick that matches her dress, a perky up-do with visible roots... taken individually these statements could work, but together it's a bit much, I think. Do you think Sienna is pulling this off? (Plus, does this make anyone else think of Madonna's "Who's That Girl?" phase?)
Source