Most Helpful Girl
She asked you for a pic, right? Obviously she's showing you off so I suspect it was mostly good things, probably a few critiques but this is common among girls who talk about guys they're just beginning to see. Continue to be cool with her and you'll have nothing to worry about.
Most Helpful Guy
Bad if they give her advice, good if they keep their stupid mouth's shut. You get your hands in someone else's relationship you should be slapped.