Which software is used to create this type of 3d design? How this type of design is created?
Option 1. It is a sculpture, painted.
Option 2. It is a sculpture, digitally painted.
Option 3. It is a digital sculpture with a painted texture.
Option 4. It is a digital sculpture painted after the render.
For options 3 and 4, Please, make a simple search: https://www.google.com/search?client=firefox-b-d&q=software+to+sculpt+3d