Have you consulted with a professional photographer? I feel as if they would be the best expert to ask your original question to.
For my professional shots I made sure to stay true to who I was as a fitness professional. I picked colors/settings I felt comfortable in and that exemplified my approach to personal training.
What type of business are you in and how do you plan to use your headshots in conjunction with it?
that’s one thing where a professional photographer really pays off because you will be using the picture over and over again.
For my own pictures, I chose a more casual setting but if a ‘headshot’ is required, I would rely on the expertise of a professional.