From an ukiyo-e print by Suzuki Harunobu (1725 – 1770). See discussion.
There are two kanji words this week for those who want to practice their calligraphy. The first is umi, the Japanese word for ocean.
The next word is umigame (sea turtle).
Here is a relatively simple sketch of a sea turtle for practice.
For this painting, I only used sumi and green gansai.