hippie summery background with abstract colorful flowers, mushrooms, peace and rainbow

1970s 60s 70s abstract agaric and art back background birthday butterfly childish colorful congratulation design droplets element eye fashion festival festive floral flower flowers fly fun funny greeting groovy happiness happy heart hippie hippy kitsch love mushroom mushrooms peace power psychedelic rainbow revival seventies sixties summer summery sun symbol toadstool trendy vector vibrant wallpaper wishes with youth