As Blu wrote, it IS hard to tell from this distance, but to me it looks a lot like the Campbell of Argyll Weathered tartan.

FYI, a bit of creative Googling came up with the info that the pic was taken on the Albert Memorial, London in August of 1995, to celebrate the London opening of a play at the Almeida directed by Alan Rickman. The play was called 'The Winter Guest', and was written by Sharman MacDonald.

I don't suppose that they allow just anyone to clamber about on the statuary <g>.

Mychael