I usually let them [his drawings] lies around for a long time. I have to get to really like it. And then when I do the painting I have to get to like… - Ellsworth Kelly

In Europe at the beginning of the twentieth century, the Fauves – Matisse, Derain – were using bright colours in their full intensity, which continued with Kandinsky, Malevich, Kirchner, Léger and Mondrian. They employed all the colours of the spectrum. In the 1940's and 1950's the majority of the Abstract Expressionists in New York rebelled against this European use of colour and mostly used mixed colours. That is, the Abstract Expressionists did use bright colours sometimes, but they tended to paint wet-on-wet, which muddled their hues. As Matisse would say, a small patch of any one colour is far less intense than a large one of the same colour. I returned in 1954 [from Paris] to New York and showed paintings done in France at the Betty Parsons Gallery in 1956 with bright colours that wouldn’t really be used until the Pop artists in the 1960's. My idea of using colour at its full intensity, which began with Colors for a Large Wall, hasn’t changed in the 60 years that I’ve been painting.

Like the postcard collages, the colors are shapes in a landscape. In this case [his collage 'Napoleon at Würtsburg'] it is a painting of a landscape, not a photo as in the postcards [collages], and therefore a contrast of the traditional painting and a presentation of literal space on top of depicted space.

The three horizontal bands at the top [ in his collage: landscape with paintings 1954] correspond to sea, sand and sky, while the yellow/white and red/white shapes at the bottom are the paintings – though of a kind I actually painted only later. It was the collage that suggested the idea of doing such paintings.