I like the challenge of painting birds on water. The rendering of water is as important to me as painting the bird and is often more difficult. The sun, the wind (or lack of it), the wildlife on and under the surface, the ebb and flow of the current, all contribute to its colour and movement. Water has a surface area and it has volume. It moves. It has depth – whether deep or shallow where the floor can be seen through the water. Painting it is a challenge, but a source of great enjoyment too.