I finally set up my etsy store. I will have more pieces posted in a couple of days. I am trying to build up a range of work large and small. If anyone needs to see more images of a piece or has any questions just let me know. Thanks for your interest.
Now the surface of the pieces are coated with a black underglaze. It’s essentially a liquefied clay that also has oxides and mason stains included to give the dark hue. I buy everything commercially through my local clay store.