That's hard to say. I think some people would like to see a little bit of stuff that shows you're a normal healthy human, while others might like a strict business-only image.
You don't want to put you own J---A-- 3D stunts online, or anything unprofessional, but IMHO a little bit of the "human touch" should be acceptable to most (atleast it would be to me) as long as its minimal compared to the pro content i.e. the main focus is the pro content - and oh by the way, I also like ___.
But as the saying goes, you can't please everyone all the time.