Artist Helen Marshall was commissioned to lead the final phase and making of The Big Picture.

She worked with photo mosaic specialists PollyTiles to realise the enormous image made up of photographs submitted by the public. You can find out more about her work at www.helenmarshall.co.uk and about PollyTiles at www.pollytiles.co.uk.

The physical version of this mosaic, at 857.3m2, broke the World Record for the largest photomosaic and was unvieled at Millennium Point in Birmingham on August 23rd 2008.

Helen Marshall is a British artist. Her work is rooted in photography and lens-based media. She also works with digital media. The work is technically ambitious and often deals with existing as well as constructed social archives. She has worked on similar commissions with the The Photographers' Gallery, the BBC and The Royal British Legion.

PollyTiles make mosaics from thousands of images on a daily basis and have a deep experience of moulding a computer-generated image into art. They are experts in the technical and design aspects of computer-generated visual art, specializing in unique photo mosaics.