horizontal geometric banner. stylish abstract retro background. soft pastel colors. grainy texture effect.

abstract abstractionism art backdrop background banner blue book booklet brand brochure card circle clean color colorful colors composition cover creative cubism decoration edge effect fabric geometric geometry grainy graphic hard horizontal line lowbrow memphis minimalism modern mosaic music neopop noise ornate pastel pattern polygonal pop poster print printable printing retro rounds shape soft squarestriangles style stylish template texture triangle vector vintage wallpaper