a hand drawn pattern of colourful geometric s.

semicircles geometrical background decoration repetition colourful geometric triangles bluewhite greenpink yellowand wallpaper repeating handdrawn undefined semicirc abstract seamless backdrop artistic colorful scribble wrapping ornament creative geometry freehand pattern circles graphic textile texture element surface drawing artwork shapes repeat pencil shades violet redand patten vector design modern fabric simple doodle grunge sketch circle square drawn black patte color shape curve round paper rough tiles hand blue pink gel