Its actually only screenshots so far, its not even a render yet
In terms of rigging course, no I don’t know any good rigging course, paid or free that is up to date.
I’ve been rigging for nearly 18 years now, started in Maya and when I switched to blender it was a lot of trial and error really. But I always create my own rig. I don’t like using things like rigify and the like. I did try them, but in the end, a good custom rig is always best.
Things to consider learning to be good at rigging, skeletal anatomy and muscle anatomy. If you understand where things bend and how they bend, then rigging becomes fairly easy. Its definitely tedious and time consuming but its easy non the less. Blender really has good solid rigging tools!
I am thinking of creating a few courses to sell on the market, but its hard with two noisy kids. I’ll try my best to come up with a few good courses to sell on there, hopefully before summer .