The mark of a professional model is that he/she never complains about what they are modeling! You were hired for the job based on your ability to ‘sell the clothes’ to the audience or reader. Your job is to act as though the clothes are your most favorite clothes in the world!
If you complain, we promise the client will never hire you again and since people tend to talk, rumors can spread that you are difficult to work with. And since no one likes a complainer, don’t complain about anything. Instead, if you need to vent, do so with your agent privately.