https://pin2d.com/thesis/20180924/#PART-5-%E7%BE%8E%E8%83%B8%E5%B0%8F%E6%8A%80%E5%B7%A7-Breast-Tutorial 至少看看這個吧 能確實學會並意識著去畫的話會好很多,其他影片也能看看