Nude Descending a Staircase is one of my favourite paintings of all time. Lately I’ve been thinking about it a lot more as I’ve been commissioned to paint a picture for some friends’ staircase and it’s an obvious reference. I’ve been inspired by so many artists over the years. They come and go as the list grows. But one of my old favourites endures. There are so few artists who stand out beyond a generation or two. Duchamp does.