How should a journalist look?

Picture bylines are a trick to make journalism more human. If you know what the writer looks like, the theory goes, you are more likely to relate the the writing. I prefer the reader to be thinking about the subject rather than the writer's dress sense, but that's me: I am old-fashioned.

The question arises, what should journalists look like. Should they be themselves (or does that risk alienating the audience)? Should they reflect the public's prejudice about what a journalist should look like (press card in the trilby)? Or should they look like they know their subject?

The Telegraph seems to have a jacket and tie policy, but Political Editor Andrew Porter goes one step further and actually looks like a politician

Richard Edwards is the Telegraph's Crime Correspondent and looks a little like a policeman. Well done, Richard. Spot on.

The Guardian seems to have a more casual photo dress policy which allows Music Editor Tim Jonze  to look like the musos he's writing about.
Steve Busfield is Head of Hedia and Technology for the Guardian and . . .  erm . . .  Sorry Steve, that shirt is not really saying Head of Media and Technology