abstract psychedelic retro background in 70-80s style. groove backdrop with simple liquid s. vintage

groovy background fluid retro abstract liquid minimal trendy vintage trippy vector wavy surreal psychedelic marble hippie curvy cover 70s 60s art artistic backdrop banner artwork design funky distorted naive playful print simple lsd melting collage contemporary form sha happy pastel nostalgia neutral colours colors template composition nostalgic pattern swirl twirl