Here is the marketplace of Envato which you can buy or sell anything related to 3D such as models, textures, metarials, shaders and so on.
Here is the link for marketplace, if you use this link to be a member, which is free, I will be the one referred you.
http://3docean.net?ref=doga
To directly reach my portfolio, which you can find some of my 3D works on sale;
http://3docean.net/user/doga/portfolio