The production process for each painting starts with Kuo photographing himself, with his chosen posture and facial expression, in his studio. Then, after printing out the photo, he meticulously paints it onto the canvas. Finally he begins slowly adding background, attire, and props until the work is complete. On average it takes three months to do a large-size composition.
每一幅畫的繪製過程，郭維國都是先在畫室裡擺好姿勢與表情，用相機「自拍」下來，再拿著列印出來的照片，一筆筆描在畫布上；最後才慢慢將背景、各種穿戴配件、道具等一一添加完成，一幅大型畫的平均作畫時間要 3 個月。