These oils on canvas are the product of three hour sessions with a wonderful model from Berkeley. The square one is 20 x 20" and the rectangular one is 16 x 20." I was joking about the difficulties inherent in doing the pattern on her jacket when the previous coat of paint has not dried. For this, I avoid hog brushes and use something much softer, like sable. I have many nylon brushes but they are stiffer than natural hair and tend to scrape the paint even when dragged sideways.
The truth is I have been trying out some Escoda Kolinski oil brushes. They are fantastic, very responsive, they retain their shape well, they last long... and so do the Escoda hog oil brushes. In addition, the handles are more ergonomic. I will have to make that special trip to Barcelona, as the company resides there since 1933.