hand drawn big textured hand painted stain. monochrome ink painted backdrop. one color grungy background

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 rectangular set shape sketch smudge space splash splatter splodge splotch spot stain stripes stroke stylish surface