autumn harvest festival banner. horizontal poster, greeting card, header for website. modern neo geometric abstract background.

harvest festival abstract geometric modern minimalist minimalism mosaic bauhaus autumn fall thanksgiving background pattern texture pumpkin pear business wallpaper retro illustration vector design fashion vintage leaf orange card invitation red holiday cover print shape day grid minimal form apple grapes mushroom sunflower spikelet rowan rose hip berries corn seamless banner horizontal poster greeting header for website neo background