In 1956, in reaction to the political campaign occurring around Mainland, China, Yee Bon moved south to Guangdong with his family. He painted Sails on Pearl River (Lot 197) a depiction of Guangzhou which is located at the northern border of the Pearl River Delta. It is the converging point of water channels of Xijiang, Beijiang, and Dongjiang. Due to its convenience in water transport, it is often called the "Southern Door" of China. The river flowing from the South China Sea has nurtured numerous lives. In the painting, Yee portrays the sea and sky as one next to the vastness of the South China Sea. Adopting a composition with a broken edge, Yee portrays the sailing boats on the left. The outward sailing ships indicate the vastness of the ocean, and his carefree and short strokes present the sea waves showing his mastery of light and colours in visual rhythm.

In Portrait of a Young Lady (Lot 199), completed in 1956, Yee depicts the working class. Having grown up in a rural village, Yee worked abroad and his life as a worker was exhausting. Therefore, he shared an affinity with labourers, a profound connection and a strong passion for the working class. Yee was committed to exploring themes of the working class, and his perspective gradually transformed from heartfelt compassion to respect and love. He once stated, "The working people are the healthiest and the most beautiful." As a result, the fishermen, farmers, and coolies painted by Yee all share great perseverance. Portrait of a Young Lady is painted in a highly classical realist style. The young lady, hair wrapped in a turban with only her face exposed emphasized her facial features and expressions while portraying a simple and honest character. Yee's Flowers and Vase (Lot 198) can be viewed as a visual poem, full of leisure pursuits. Through Yee's carefully designed composition, well-mastered descriptive skills, and the use of warm and elegant colours, the blossoming flowers show different styles, warming our hearts.