What I love about the BP-S is the soft, thin lines it makes and the fine control of gradient and texture I can achieve. It's a lightweight pen that is easy to grip and they are not so expensive that if you lose or break one that it's a problem. They can get a bit blobby at times, leaving surprise little globs of ink where you might not want them, so I keep a scrap piece of paper nearby to spin the tip on to clear it.
This drawing is of an African mask from the Ibo group of West Africa. I like the realistic facial details and the white paint that's flaking off. I also like the plank coming out of the top of the head. There are small holes drilled through it that make me wonder what was attached.
OK HW