Too cocky for my taste, prances around like Jen Coffey. I remember one time when she was modeling for Susan Graver. Susan didn't like how she was wearing something, went over and changed it, said that was how she meant for it to be worn.
I'm pretty sure the models do not style their own clothes. QVC has someone else do that. SG has commented on both her likes and dislikes about how her clothing has been styled and yes, sometimes she will give a shout out to the stylist who is working behind the scenes.
She used to model clothes for designer Randolph Duke over on HSN many years ago, at least 20 years ago maybe. That's where I first saw Katia modelling. She has been around for a while.