Portrait of smiling Queen by David Bailey released to mark Monarch's birthday

This portrait of Queen Elizabeth II by the renowned British photographer David Bailey CBE released to mark her 88th birthday on Monday. Credit: David Bailey / PA Wire

A portrait of the Queen by the renowned British photographer David Bailey was released to mark her 88th birthday tomorrow.

The photograph of the smiling monarch, which was taken at Buckingham Palace in March, was commissioned on behalf of the Government's GREAT Britain campaign.

The Queen is wearing pearls and a dress by Angela Kelly, who has served as personal assistant and senior dresser to her since 2002.

It is hoped that the image will encourage overseas visitors to experience Britain's royal heritage. Britain's monarchy, including royal heritage and property, is one of the biggest drivers of tourism into the UK, generating an estimated £500 million per year from overseas tourism spend.