You will know how to do the same. As you can see, not much attention to detail at all in this stage. Edges are kept soft on purpose. The process of massing in the main areas of color is now revised. Essentially, the same thing is done again, just more carefully.
Edges become more established, corrections are made and features begin to get indicated.
The main areas of light and shadow become more defined, like on the red sash and the shadow area on the girl's face. He was always preparing his painting for those final strokes that make the painting special. Now, the time has come. He has done his preparation so well. His foundation was done.