Not to be repeating what others said, but I agree that the shape of you heard looks fine; no worries.
In my opinion, you look good with the buzz cut and probably would look good bald but also would look good with longer hair. So, at this point, it's a win/win/win situation: you could keep it like the photo, or shave it, or grow it - it will look fine any choice. Enjoy having the options and go with which ever meets your preference.