I think she did once back in 2006, I guess Prada doesn't cast the more classically beautiful models. They usually have quite quirky features that set the apart, so they don't cast girls like Snejana, Lily Donaldson or Doutzen, apparantly Muiccia Prada likes to see something of herself in the girls she has in her shows, so I guess that's the brief Russel Marsh probably has. Though when she did walk for them in 2006, her and Sasha shared the campaign. Though her images weren't used, which was odd, considering Meisel used to really like Snejana at that period.