The picture of Nikki Williams does not do this beautiful lady the slightest bit of justice - it's awful!
But it does look as if it might be an interesting thing...
I collect Allister Malcolm and Nikki Williams and I have some very early work by Stephen Foster - from his studentship at Broadfield house, and have a few bits of Jonathan Harris' earlier stuff too. (hot worked, I'm not really into "drawing" on glass)