Once you start painting, you could of course get lost. I mean you get out of yourself, you don't know whether you're thinking, you just act actually sometimes.

About shadows: do we see shadows? Loads of people don't. A camera will notice a shadow, but how many people have got a shadow in front of them when they take a picture and don't notice it, and then they see it in the photograph because the photograph will catch the shadow.

I stay up nights and fiddle with my opera designs. It's a bit obsessive. That's why I can't do it all the time.

The moment you cheat for the sake of beauty, you know you're an artist.

Photographs aren't accounts of scrutiny. The shutter is open for a fraction of a second.

But slowly I began to use cameras and then think about what it was that was going on. It took me a long time, I mean I actually played with cameras and photography for about 20 years.

People from the village come up and tease me: 'We hear you've started drawing on your telephone.' And I tell them, 'Well, no, actually, it's just that occasionally I speak on my sketch pad,'