It took five days for Guillaume Legros, better known as Saype, to paint a pipe-smoking shepherd onto 10,000 square metres (12,000 square yards) of grass near Leysin in the Alpine canton of Vaud.
Keen to protect the environment, Saype, 27, used only natural products for his artwork, which will gradually fade as the grass grows and as rain falls.
"If I forgot a bucket of paint down the hill, it would take me half an hour to go and fetch it," he told the 24 Heures newspaper.
Saype had to make several emergency repairs to the painting, filling in the burrows made by moles, before its official launch on tomorrow.
Also Read
"I painted an immense man. But he is nothing compared to the immensity of nature. That's what I wanted to reflect on," he told the paper.
According to Guinness World Records, Saype's work is slightly smaller than the largest painting on any surface.