I did come across them but didn't save them. Now, I can't find them on the internet.

These ones?

Yeah, but these ones aren't high res.

I don't think you'll find anything better than these legitimately published free (The photographer will want to protect the file for limited print runs).

They're not bad at all. I've seen worse.

http://www.standard.co.uk/showbiz/celebrity-news/tvs-golden-girl-goes-silver-holly-willoughby-covered-in-paint-for-photoshoot-8787919.html

Bigger ones here.