hand drawn big brush stain with blots. monochrome ink painted stroke. painted by brush black stain. monochrome

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