Identify patterns in figure
 

There is a preparatory drawing for the painting.

Someone will tell of the author's paintings and drawings?

On eBay it was sold. 27 dollars - like?

Good time.
I think, a very good picture, and you? And probably the 18th and 19th ?
With HC.

In my opinion, it's just a copy marked into squares sheet.
Google says that picture taken from eBay. Probably sold already