First of all there was a guy named Charles Nicholas, who used to do all of the inking that Jack and Simon didn't do. Simon used to do splashes and covers, but Charles Nicholas, after a while, did the inside of all of the stuff.
I don't see that my age has anything to do with what is between the covers of my book, any more than the fact that I am right-handed. It's a fact of my biography, but it's uninteresting.
I did about 2000 covers altogether, for all sorts of books - from Shakespeare to James Bond - and I always had the idea that I must give 100%, no matter who the author was.