There are people on deviantart who are looking for models, so its very logical to believe that she is hoping someone will see her photos and want to work with her professionally
Its also possiblele that she posted these here because Instagram, Facebook, Myspace, and other sites might not allow them on their sites because of rather ill-defined no-nudity rules, Plus, its VERY CLEAR (or it should be) that there is a difference between artistic displaying of one's body and showing it off just because perverted comments possibly turn one on.