viewimage.php?id=29afd131ecdc3f&no=24b0d769e1d32ca73feb87fa11d0283175f95a5bb5a9434fdc24c2adb24d4bdd33144f398436d96570cb78e48f30e1868504f969a6ab9a03f5aab1fdb54982bee52ad186c633b8fb65fd713a

선이랑 흑백만으로 명암이나 재질 그리는 법 잘 나와있는거 같음