He copied a version of Dwelling in the Fuchun Mountains.
Tips
culture
临摹 is the core training method in Chinese calligraphy and painting. 临 (lín) means working from the original placed beside you, while 摹 (mó) means tracing through a transparent overlay — together they describe the full apprentice practice.
mistakes
Don't confuse with 模仿 (mófǎng, imitate). 临摹 specifically refers to copying art/calligraphy as a practice exercise; 模仿 is general imitation (behavior, style, voice).