I have never seen this footage of Diana modelling 60's fashions before with a so-called look-a-like. The video is at the PURRR site. Emma Peel is mentioned an awful lot and you see images of her in this fashion museum (I think it is) and then about 3mins you see the footgae I mentioned above. At about 6mins there is a poster of 3 models - could that be Joanna on the right??? By the way, it is all in German.
PS: If you would like to watch the programme mentioned in another thread - 'Style on Trial' which was on BBC 4 last year with John Bates this is also at PURRR: