Thatcher or Black?

I have been making more fun cartoons with built in hilarity of celebrities. This week I have mostly been drawing well known and instantly recognisable celebrities from the United Kingdom. I started to draw this with the intention of capturing the likeness of that wonder lady of the stage, Cilla Black, but after I finnished drawing it, I realise it might look a bit more like Margaret Thatcher, who used to be the Prime Minister of this very country. OR at least Janet Brown impressioning her in the 1980's quite badly, with a poor make up budget.