Woo Sang-ha was a painter active from the nineteenth century into the early twentieth century, known by the sobriquet Gyeomhyeon (謙玄), who is said to have resided in Dancheon, Hamgyeong Province. He was particularly accomplished in figure painting and was reputed to be skilled in regular script (楷書) calligraphy as well; however, neither his dates of birth and death nor the precise details of his life have been established. His surviving works are exceedingly rare: only two are recorded — Fisherman (漁人圖, 1891), included in the Geunnyeok Hwahwi (槿域畵彙, Compendium of Korean Paintings) held in the collection of Seoul National University Museum, and Never Forgetting Green Mountains: A Pair of Deer (不忘靑山 雙鹿), in the Gansong Art Museum (Gansong Munhwa, nos. 17–21).

At first glance, the contour lines of this work appear unusually sharp and the overall impression somewhat raw — an effect attributable to the technique employed: finger painting (指頭畵), in which the fingers and fingernails serve as the primary instruments in place of the brush. Nonetheless, the modulation of ink is accomplished with considerable skill, and both the composition and handling of line are assured, bearing clear witness to the painter's mastery. An inscription by a person identified as Ochon (梧村) appears in the upper left, from which it can be determined that the work originally formed part of a ten-panel folding screen:

"This painting is a finger painting by Woo Gyeomhyeon. It was originally a ten-panel folding screen, which I have kept in my possession for many years. As my children all wished to receive a portion for themselves, I eventually had the panels remounted as individual hanging scrolls and distributed them accordingly; Kim Nang In-geol was likewise included among the recipients. Written in the early days of the eighth month, the year Eulmo (1915?), by Ochon. (此畵即禹謙玄指墨 而初計屏面十幅 藏之久矣 諸兒皆欲分持故 遂裝簇子分與 而金郎仁杰亦忝其班 乙卯 八月上澣 梧村)"