一鳥啼山更幽 (secluded place deep in the mountains so peaceful and tranquil, that even a single bird's cry does not break the absolute silence).
I scanned it and converted into a negative. It's a small scale calligraphy, characters do not exceed 4cm in height, written with a small brush that is normally used for cpying sutras (写経).
the same phrase, in a slightly different mood
