striped spiral abstract tunnel background. spiral funnel. gray twisted ray hole. exciting gently spiraling optical illusion

abstract backdrop background circle curl curved decor depth design digital dynamic edge exciting fractal frame funnel generated gently geometric geometry graphic gray grey grid helix hole illusion illustration infinity line mesh monochrome motion optical pattern perspective ray repetition rotation round rounded shape spiral spiraling step strip striped swirl trendy tube tunnel twist twisted vector volume vortex wallpaper warp whirlpool white worm