“Green Day III” is a song of nature filled with green: green milk, blue duck, blue water. Pham Khanh Thanh mainly depicts paintings by colors and he paints them in meticulous, sophisticated and thorough manners. Each of his paintings contains the beauty of the dream of hard life. For Pham Khanh Thanh, he defines the beauty of nature with the beauty of trees, so in his paintings, trees appear to be shimmering, colorful, rich in visual value. When describing nature focusing on the beauty of the tree, Pham Khanh Thanh maximizes the impression of the leaves’ color with a stylized brush and a symbolic intertwine as well as a magnificient beauty. The artist has highlighted the special charm of the natural paintings, which is very different from the paintings we often see from another painters.