hand marks pattern, seamless texture full of bold lines and scribble strokes. black ink stains and lines, marker tilable

abstract art black blot bold brush brushstroke chaotic creative curl different direction doodle drawn endless fill freehand graphic hand ink irregular jot marker marks maze mess organic ornament pen puzzle random rough scrawl scribble set shape sketch sketchy spot squiggle stain stroke texture tillable trace unusual vector wallpaper white wiggly