So I've ironed out the two main troubles I had in the previous post!
What's new
Golem level! Work in progress. Crawl around on a golem as he walks in a perfectly straight line through a chunk of valley. Tell me if anything behaves oddly.
Here's the approach to Jeb's back.

Here you can see the view of Jeb's armpit if you were to be sitting on a dragon who is in turn standing on Jeb's right thigh.

Along the way I had to tighten up some of the movement mechanics when clinging to walls. Hopefully you'll only notice good changes, if any.
This isn't really a complete gameplay loop. All he does is walk. You can't kill him or be killed by him or anything.
What's next?
Now that you can actually walk on him properly, Jeb needs more animations.
Pathfinding for Jeb. Right now he only walks in a straight line. Even if there's no ground beneath him.
Sound effects. For Jeb.
Build out the level. Have a win and a loss condition. I'm thinking "Kill Jeb before he reaches some endpoint".
Might sculpt out Jeb a bit more. His left arm's colliders sometimes make walking on him weird.