Every doll's head, hands and feet/shoes are carefully sculpted with strong epoxy clay. Their hair is synthetic, with the exception of sheep wool dreadlocks. Their eyes are made of glass beads or semi-precious stones. Their bodies consist of a textile pouch that is partially filled with rocks at the bottom. This makes them stable enough to sit without back support. All the dolls are meant to sit down, but can technically stand with some support - like against a wall - for a photo (at your own risk). This is possible because they have a metal wire skeleton inside of them. Again, they are not meant to be played with and theoretically the metal wire will eventually get worn out if bended it the same spot too many times. This has not happened to me personally even after several photoshoots with a doll, but bending their arm every day for weeks or months will likely make it snap at some point.
Shoes/feet are usually not painted, but instead made of colored clay. On darker clay, white scratches may appear from friction with the other shoe or a hard surface, but rubbing your fingers over the scratches will usually make them disappear. Be aware that a very rough surface like concrete could leave permanent damage, just like sandpaper would.
If you'd like to see my dolls being made, you can check out my Youtube channel. You can find short videos on my Instagram page (reels tab) and on Tiktok. If you want to make dolls yourself, of course use my videos as inspiration, but do not copy my original work! They are my intellectual property, including the designs I've made for the bodies.