They could do well so long as their content has some substance to it other than simply posting attractive pictures of themselves. In addition, if they're going to be taken seriously then they'll want to do a photo verification with a time-stamp to prove they are the people in the pictures they are posting, or even a quick video addressing the Steemit community would add even more credibility. On this platform trust and credibility go a long way to earning big rewards.
Good input, appreciated. I already had talked to them about the authentic photo. I like the video idea. I think the content would be just as much informative as it might be at times attractive. These girls work as hard or harder than I do.