If you, or the client, want to emphasise the bag maybe you could try leaving it in colour and dropping the rest to black-and-white ? Could be even hotter with a 'this bag is useable' message if the model was working the cameras as though shooting. I mean one hand directing, or some other sort of interaction with her (imaginary) out-of-frame subject, camera to the eye, changing film etc? Looks nice though, congratulations 🙂