drips of black ink. vertical and diagonal lines, drops and splashes. different size. dry brush texture. set of four unique

abstract and art artistic backdrop background black blob brush collection creative decor decoration design diagonal different dirt dirty dot drawing drawn drip drips drop drops dry effect element fluid four graphic grunge hand illustration ink isolated lines liquid messy paint pattern patterns set shape silhouette size spatter splash splashes splashing splatter splattered spot spray stain symbol texture unique vertical water watercolor wet