vintage 70s geometric posters, abstract retro stripes backgrounds. minimalist 1970s style color lines print or poster

geometric stripe line 70s 1970s shape circle psychedelic wave funky path curve road color old aged striped creative flow effect 1980s 80s 1960s 60s pack brown yellow poster abstract illustration decoration design vector art cover minimalist style print template vintage retro trendy artwork background card set collection banner flyer