I use that soft wider brush to gently blur the entire surface of the artwork together. I really like the way the oil paint looks when it is blended this way. Gerhard Richter is my influential source for using this and other methods of moving paint. Looking at the medium blurred in a soft misty way can be exquisitely enchanting. There is oil like fines to it. The painting I am making is largely intended as an object of decor, something to have around a living space. I want it to be pleasurable and subtle rather then a statement of artistic expression.
The next task is to build up some textural, even more expressive marks. This is a job for the palette knife. I am adding new elements and colors to the smooth first layers of paint. Having life long studio experience I know, that I will always for sure understand it when my painting is complete. I am waiting for the balance the conditions of which are only known to me. Take a breather. Put the piece away. Forget all about it. Then the next day see it with the fresh eyes and voila - it either feels done or it shows me exactly what is missing.