Every time I set up a blank canvas or a blank piece of paper, I experience the same feeling—queasiness, something approaching panic, and a profound lack of self-belief. There are a limitless number of marks that could be made, and almost all of them will be mistakes. That is, they will set up a logic which will lead the picture to banality or pointless mimicry. For every mark implies another. Will that circle be repeated or answered by different shape? Will it be a sun, a plate, a face? That stuttering horizontal line—it’s the sea isn’t it? Or if it’s not, you’d better work hard and fast to make that clear. And so on.
One of the reasons painters tend to develop a signature style and stick to it is that this helps answer the original panic. Some people will always begin with an image at the centre of the picture plane. It seems that Picasso mostly does this---a face, a bird, a group of figures, will shoulder themselves out of the centre, and the lines will press away to the edges of the paper or canvas. Other painters think very hard about edges, and work inwards. Oddly, because his pictures mostly involve a central shimmering block of colours, I think Mark Rothko probably painted that way. But an initial, bold decision about how to break up the picture surface, and—to put it banally—what will go where, helps any painter get going. And once you have a way in, you are likely to use it again and again; and that way in will hugely influence what’s going to happen next.
—Andrew Marr, A Short Book About Painting (Quadrille Publishing Ltd, 2017)