His work focuses on the suiboku-ga tradition of ink wash painting. Tōgan used sharp, angular brushstrokes to define mountains and figures. This technique is seen in his Portrait of Daruma and Landscape of the Four Seasons. He avoided the soft, decorative styles of the contemporary Kano school. Instead, he used grey washes and stark black ink to create space and depth on paper and silk.

Collectors today value these prints for their minimalist aesthetic and calm atmosphere. The ink compositions, such as the Eight Views of Xiao-Xiang, provide a sense of quiet focus. These works fit well in modern interiors that prioritise clean lines and natural materials. The historical connection to Zen Buddhist subjects adds a layer of contemplation to any room.