Here's a little trick I use to get a smooth head and face. I use dark primer paint to cover the head. When the primer dries you can see all the little imperfections that need to be filled and sanded. This is a long and tedious process But well worth the effort when finished!!! I still have a few spots to fill and sand, but he is coming along! Remember, make it as smooth/ flawless as possible before you make your mold and you'll save a lot of time finishing the head once the head is cast!