Painting in gouache and watercolour, with mica powder and aluminium leaf. This is Diane, and in the original photograph from which I took her expression, she had just got into Clevedon Marine Lake, and yes, it really was 2.5 degrees.
There is a lot of metal in this picture, and a scan doesn’t really show it off very well, so I have also posted a wobbly little film-clip that may give you a better impression.
WaterDrawn 