chalk brushes. sketch grunge charcoal, texture rough scratching pencil chalk line, freehand doodle scribble stroke art

art artistic background black broken chalk chaotic charcoal collection design distressed doodle draw drawing drawn effect freehand grainy graphic graphite grunge hand hatch illustration ink messy paint pattern pen pencil repeat rough scratch scratched scribble set shading shape sketch sketchy spotted stain stroke style textile texture textured trendy vector white