Blender is an open-source 3D modelling program which is quite amazing, if intimidating. I’ve been watching Youtube tutorials, and by practicing a lot, am able to model some simple things, which will help with my storyboards and other drawing. It reminds me a little of putting together the model kits I used to build as a kid. But this is virtual, and you make your own parts.
The learning process is still going on. I will put some leaves on the trees, and grass on the floor. This could take years to master, though. It has a lot of potential.