If you want to sell the STL files of your 3D printing models via gambody.com and make money on our marketplace, you need to register on Gambody as an author, upload the STL files and wait for the model to be released. You can find a detailed step-by-step guide through the uploading process in an article from our blog here.
It is important to note that at present you need to provide only STL files (source files in some cases) of high-poly models for 3D printing of characters/objects from video games, comic books or movies. That is all you need to do and nothing more. All the promo materials, including render images, 360, assembly videos, descriptions, 3D printing recommendations and painting tutorials will be made by Gambody team. So when uploading you can leave the corresponding fields empty.
You may also get interested in reading the following information in an answer titled 'Want to sell works, what does being an exclusive author mean?'