Mr. MacDonald,

I don't believe Cindy Vallar's page can help you. She includes two images, from the International Gathering of Clan Cameron, 2001 - Achnacarry.
Both are Oil on Canvas: Sir Donald Cameron of Locheil & Sir Ewen Cameron of Locheil. Based on the flash included in the exposures, I think she snapped the images herself.

The "Sir Donald Cameron of Locheil" image is the exact image you already posted. It is not a colour version of your B&W image. Which, I don't believe does you any good. As for navigating her site, here is a direct link to the page in question,
http://www.cindyvallar.com/scot2.html

Again, as a person who does an inordinate amount of research, and loves the chase, I'm sorry for the confusion.
Domehead

P.S. She spells Locheil (or, Loch Eil) incorrectly. You'll notice.