A Chinese Merchant. (Oil on canvas). A fine example of a portrait by Tsinghua, who could not escape Chinnery's influence and who was drawn into his orbit of interpretation. A Chinese Merchant or Mandarin. (Oil on canvas) by the artist Spoilum. Portraiture already formed a part of China Trade paintings before Chinnery's arrival. One of the earliest in the last decades of the 18th century was Spoilum a.k.a. Guan