I discovered this when I was scanning the Art d'Ecco material a few days ago. I'd completely forgotten this ever existed. It won't be going in the book because there's a black and white version knocking around already.
I vaguely recall cobbling this together for my portfolio in 1990 when I realised that UK publishers were getting into full-colour artwork in a big way. I suppose you could say it's from my "didn't know what the hell to do with colour" period.