Sorry, I'm not being rude, but what is wrong with you?!
Last week you were complaining saying that Carmel shouldn't do 2 shifts in 2 days quite close together, now you aren't letting the model do her shift - She pobably gets hired every tuesday...why isn't this allowed now? And the models are allowed to wear some of their own stuff, as it can show off the clothing, and show how well it goes with things.
All I can say is if all you can do is complain about people working 2 shifts in a short time, then complain about somebody working 1 day a week on the same day and her wearing her own items, just don't watch!