Visitors flying into London Heathrow this summer will be welcomed by a giant painting of Team GB heptathlete Jessica Ennis on the grass beneath the flightpath.

Created by 3D Art for British Airways, as part of its celebratory Olympics campaign, the biodegradable portrait is also a cheeky reminder to international athletes of Team GB's home advantage, bearing the words 'welcome to our turf'. Measuring the size of a double-decker bus, the painting took almost two days to complete.

Says Ennis of the artwork: ’I’m thrilled to be the first face that people will see arriving into the UK for the London 2012 Games. I hope it brings excitement to homecoming Brits, and reminds international athletes that we’re ready and prepared.'