black and white seamless mandala pattern. monochrome seamless background with stars. hand-drawn

abstract adult anti antistress antistresscoloring art arttherapy background black blackandwhite bloom blossom book chaotic coloring coloringbook coloringpage contour decorative design doodle drawing ethnic floral flower graphic growth handdrawn illustration leaf mandala monochrome ornament ornate outline page pattern plant seamless spring stars stress summer swirl textile texture vector wallpaper white zen