Left image: A man drawing a graffiti themed "save Our earth".
Right image: A can of paint, overflowing onto the grass. The paint seems to be harmful for insects.
The image is ironical, as the cans of paint used to make graffiti on the theme "Save the Earth" seems to be destroying the Earth when it overflows on the grass, as it is harmful for the flora and fauna, as can be seen from the dying insects.