The Green Party 2015 General Election campaign poster was funded through busking and a sponsored expedition up Kilimanjaro. It was constructed from 100% recyclable materials such as paper, wood, and members' blood mixed with white eco-friendly ink for the writing. They adhered to the concept of "a thousand words writes a picture" and wasted no valuable resources producing images on Photoshop.
Their anti-austerity message in their poster separated them distinctly from Labour. After all, Labour had never been in a council coalition with the Conservatives. They made it explicitly clear that where they fail to deliver environmental policies they would deliver anti-austerity policies and where they fail to deliver anti-austerity policies they would deliver environmental ones. Sometimes they would even fail to deliver both.