abstract background black design graphic hypnosis illustration op art optical illusion round scrapbooking spiral swirl texture white 3D art backdrop blue curve decoration distort flower form geometric grid infinity kaleidoscope lines op-art optical pattern pop art psychedelic red sci-fi science fiction seamless star tile tiles trippy vasareli vector vivid warp yellow circles cogs concept creation machine orange original sphere steampunk style three dimensional unique color colourful fancy flowers pink square tilable vintage bulge bump cage depth hexagon mosaic relief row shapes space time twist wallpaper walls weave brown hi res contour diamond green vasarely aqua distortion floral