He was selected as Sony Digital Photographer of the year in 2005 and his work has appeared in numerous magazines in the UK and internationally. Walden's fine-art images have exhibited in Australia, Austria, Switzerland, and the USA as well as the UK. He has published several books.

With the skills to create images which capture the eye and captivate the imagination these are perfect tools for enhancing marketing campaigns.

Clients include the BBC, Starbucks, Dixons, Samsung and Royal Bank of Canada. Walden has worked with many high fashion labels, including Vivienne Westwood, Karl Lagerfield, Ralph Lauren, Save the Queen, Isabella de Pedro and more.