hand drawn ink brush stain. monochrome painted stroke. painted by brush black stain. monochrome artistic backdrop

abstract art artistic backdrop background banner black blot blotch brush brushstroke craft creative decoration decorative design drawing drawn dry dye freehand gradually graphic grayscale grunge hand illustration imprint ink isolated monochrome paint paintbrush set shape sketch smudge space splash splatter splodge splotch spot square stain stripes stroke stylish wave