Amazing! Jorge Rodriguez-Gerada really pushed the boundaries on this one.
"For the 2013 Ulster Bank Belfast International Festival at Queen's, Cuban-American Artist, Jorge Rodríguez-Gerada, has created WISH, a portrait of an anonymous local girl photographed by the artist in the process of making a pure and simple wish for the future. Spanning an 11 acre site in Belfast's Titanic Quarter, the photographic image of this girl - made of topsoil, sand, grass and stones - can be seen from various locations around Belfast. This innovative public artwork pushes boundaries and uses cutting edge technologies, making it one of the most ambitious land art projects in the world." (Taken from YouTube.)