I want to model some scenes in the style of the old Cyan game Cosmic Osmo (screenshots below), but I have done very little with 3D modelling so far, and nothing non-photorealistic before, so I am rather lost. I found a couple of 10+ year-old threads here on BlenderArtists (this post in particular looked promising), but Blender has changed so much, and the links to .blend files are now dead links, so that didn’t help much. Those also predate FreeStyle integration, which sounds like it may be a better way to go than compositing without FreeStyle.
Any pointers?