Yuan of Yangzhou, Jiangsu Province was a great master noted for his huge portraits of great power. It's rare for him to make such a sketch full of life.

袁江是清代的界面高手，其作品气势辉煌，如此轻松的小品真是难得一见。

youdao

Obliquely titled "Caricature of a Nobleman, from behind, " it's actually a sketch by the 18th-century master Giambattista Tiepolo of a Venetian gentleman relieving himself.

WSJ: The Art of Collecting

In addition to being a master of the provocative statement, Mr Giddins is a dab hand at the deft biographical sketch.

ECONOMIST: Jazz books

When you have selected the type of scientific study of a painting or sketch, a simple slider movement left or right takes you on an X-ray journey through one of the master's works.

BBC: 8bitpeoples