hand-drawn curly brush strokes and squiggly lines, combined with wave-like doodles and swirls, using charcoal and ink to

brush line stroke squiggly paint curly doodle hand swirl scribble wave drawn squiggle ink crayons smear wavy chinese vignetting charcoal calligraphy curve chalk grunge loop spiral rough swish dry scrawl splash swash thick swoosh design modern graffiti bold pen japanese abstract vintage thin black border background texture ai generated