I had been painting Kate Moss for a long time, both before the time of her crisis and during it. I felt very strongly for her - she's a hard-working mum and it seemed as if suddenly the world turned against her. Holy water cannot help you now is painted in very warm pretty colours.

On Christmas Day I'll head off for a couple of laps around the Serpentine, or a trek around the whole of Hyde Park. Or I'll walk right across town, with Curtis, my son Jamie's bull mastiff.

My working hours are not that conventional. I often get up about two in the morning and do a painting, and then I'll have a bath, and then I often feel very hungry around 4am, so I'll go into Soho and have a meal somewhere like Balans. That's what I love about living here - there's always life around me.

I will look through 200 photographs of Kate Moss and there will be just one that I connect with for some reason, maybe because of the composition or something in the eye... Something touches me and I know I have to paint it, in the way a child knows it wants something.

I do have a very, very big problem with someone who saw me coming and exploited me as a mascot.

I like strong/vulnerable interesting women, and then sometimes I like painting beautiful men, like Kurt Cobain, or Mr Darcy.

Even in the most horrendous situations there is always something to smile about.