Usually, the most difficult thing to do is photo-real stuff. Something that has to actually look like the real world, because it's just so difficult to do that. We're just so used to looking at the real world, our brains instantly see when something is not quite right.

I do very, very, very simple, skimpy doodles, nothing too committed. Because people tend to fall in love if they like it - if you color it in and they like it, then they want exactly those colors, even if they were just indications. You really have to do it as simple as possible so they can concentrate on the idea and composition. And then all of the energy goes into making the final piece. And the final piece can be anything - it can be a drawing, a painting, a collage - and usually, it's obvious what that should be. Usually, the idea dictates what medium you use.

Everybody's a bird, locked up in a pretty cage. Sometimes you fly to a slightly bigger one, but you never quite have the courage to abandon captivity completely.

The filmmakers I really love are the ones that let me look through their eyes for a while. They have an aesthetic and social point of view.

I tend to be known for different things. I mean, there are a lot of comics or sci-fi fans out there who sort of think of me doing that kind of work, but there are just as many people who like the CD covers I've done, or the children's books I've done. So different people like different things.

I've always used masks. I think it's a lot about the fact that masks often reveal a sort of subconscious element to a character. The mask is carved and given an expression or markings to reveal something, even though it's shielding the face. Even though it's hiding the face, it seems to reveal something underneath.

When you just get fantasy stories that are about fairies or goblins, I just don't care. I'm never going to meet a goblin, it doesn't mean anything to me. So my definition of fantasy is very broad, it's anything to do with memory, or dreams, or ways of interpreting or making sense of the world.