I believe everyone ought to have fun with fashion, even if it’s the second—or third—or whatever— time around. So big thumbs up exploring your different options!
The teaching question, though, is a bit more nuanced. It’s my experience, after spending most of my life in front of college and university students, that , regardless of what you do, 15% will love you for it, 15%will detest it, and the remaining 70% will tolerate or ignore or just get on with it. The only hesitation that I would have about constantly changing up how I present myself to a roomful of college students is that it could be distracting and make me appear unsure of my role.
In my experience, college students are still in a formative stage of their life. They can become attached to a teacher who seems to understand their need to explore and take risks, but it can backfire on the instructor if a student has difficulty understanding the power distinction between the two roles. Having fun is important, but learning is also serious work for many students. It can be a tricky balancing act for a teacher who wants to show a playful spirit. Good luck in figuring out your boundaries for your situation.