All she really had to do was look sleepy or bored. That's not hard. I wish she could've copied Amanda B's facial expression from her Anorexic pic or Marvita's facial expression from her paint shoot. The body is pretty much dead.
Sloth is tricky, but I think its best to try and look a little sleepy or like you don't care. (by the way, I am using an image of ALL the "FMA" Sins for these!)
I think this is great considering the theme she was given. Looks like someone woke her up from a deep sleep and she's seeing the light for the first time in years.
Correction-
I really think HE knows that...