This is the eleventh of a series of tree studies directly inspired by the 1671 Chinese manual of painting, the Chieh Tzu Yuan Chuan (Mustard Seed Garden Manual of Painting). There are two ways of painting two trees together. Draw a large tree and add a small one; this is called fu lao (carrying the old on the back). Draw a small tree and add a large one; this is called hsieh yu (leading the young by the hand). Old trees should show a grave dignity and an air of compassion. Young trees should appear modest and retiring. They should stand together gazing at each other.