Just to clarify - cgtrader doesn't provide services similar to pixelsquid, it doesn't sell images (we're not talking about textures here). If you need images of 3d models that you see here, your only option is to contact seller directly and ask if he could render them and sell or give you the images you need. It's worth to note that you can't legally use images that are provided as model previews on cgtrader, unless you get permission from seller first.