Update: I spoke to my director and gave me permission to show all of my work so far; but not post it online (which is understandable). I am glad I had the talk and am grateful to be working for employers who truly care about the future success of their former interns. I did a ton of sketches, concept work, even final production etc… so it would be unfortunate not to be able to show them at future interviews.
Thanks everyone for your opinions and advice.
Quinn, your career trajectory is very inspiring!