She's a successful Hollywood actress, political activist and social advocate. And now Rosario Dawson, 39, is also a model as she poses for the new H&M Conscious Collection In the promotional mailer, Dawson is quoted as saying 'the clothes feel very light and whimsical.' According to H&M, the Conscious Collection 'unites modern romantic designs with flowing bohemian lengths. Promotional: 'Basically, …