art boy cartoon children clip art clipart education graphic illustration kids learning pencil school brush colors paintbox paintbrush painting tinker water color water colour watercolors angle draw drawing geometry line math mathematics plan project ruler triangle work workplace ABC alphabet black blackboard chalk communicate letter letters white word words write written color creativity doubts paint smudged splatter toy watercolor dirty palette pigment play used water backpack bag fashion girl holiday isolated journey model silhouette sport teenager tennis travel basic bent bind clip hold metal objects office paper clip supplies together wire book books copyspace library literature old open page pages read reading two eyeglasses glasses learn spectacles