标题（Title） 一般不超过80个字符
Drawing Lessons - How to Draw the Portrait - Drawing Figure - Drawing Still Life.
（81 个字符）
关键词（KeyWords）一般不超过100个字符
drawing, art, how, to, draw, tutorials, lessons, guide, videos, free, pencil, portrait, figure, still, life, skull, foot, hand, sketch, painting
（144 个字符）
描述（Description）一般不超过200个字符
Short video clips demonstrate how to draw basic shapes, perspective, portrait, human figure, still life. Lessons describe drawing techniques.
（141 个字符）
