I have great respect for the artist David Hockney. It was Hockney who demonstrated how digital art could be used on the iPad with the brushes app. After viewing his work, I started to do my own digital art with the initial pieces truly garbage. As with any medium, it takes practice. practice, practice to start to achieve some success.
The piece below was in a photograph in the newspaper so I set to work to try and copy it. There are so many different marks on this picture that it took many hours and days to finally achieve what I thought was a reasonable representation of his work and boy was it a good learning curve.