Hi everyone, just found this great asset on Poly4D that is a free 3D model of the earth. There are also other 3D models and scenes, as well as a bunch of Cinema 4D tutorials.
Check out this reference image of the earth you will download.
Poly4D is a curated and primarily Cinema 4D tutorial website. All tutorials are free and hosted on YouTube by their respective owners. There is no precise differentiation from beginners to experts, almost every single video is relevant to becoming a well rounded 3D generalist. The breadth of topics include using modeling, texturing, rendering, lighting, using Octane, Houdini, mograph, and more.