Ключевые слова: animal, bear, black, cattle, collection, cow, curve, deer, domestic, doodle, drawn, element, fauna, forest, freehand, grunge, hand, horse, house, ink, isolated, line, mark, marker, mule, nature, notebook, page, pen, pencil, pig, round, scratch, scribble, set, sign, simple, sketch, stag, stroke, swine, swirl, thick, thin, uneven, wild, wildlife, wolf,