From a koinobori by Keishu Takeuchi (1861 - 1942). See Discussion.
The kanji word below is musha ningyō (warrior doll) for those who want to practice their calligraphy.
Here is a relatively simple sketch of a musha ningyō for practice.
This week's painting uses the kōrokutensai-hō technique again. It is a combination of senbyō-hō (lines) and mokkotsu-hō (boneless strokes).