They say that when Seurat painted this picture, he sat on a high stool and carefully applied the colors point by point with long brushes.

据说，修拉创作这幅作品时，坐在一张高凳上，用长长的画笔仔细点彩。

You can talk about colors or the lack of colors, point of view, the kind of art (painting, calligraphy, sculpture), the artwork's connection with history and society, and so on.

你可以谈论颜色或缺少颜色、观点、艺术的种类（绘画，书法，雕塑），艺术作品与历史和社会的联系，等等。