retro hippie posters showcasing psychedelic 1970s inspired wallpapers. bold floral chamomile motifs and groovy abstract

psychedelic poster retro hippie groovy rainbow design ufo wallpaper floral vector illustration vintage abstract 1970s decorative style plants set cartoon print 70s art banner sun graphic cute y2k happy character fun planet pattern placard sky card vibes dawn symbol acid lsd doodle background face trip template funny backdrop flower