I've been working really hard the last few months putting together this rig and newer model for Skyfear's animation. (Skyfear is a game I'm developing: https://www.protoriastudios.com/skyfear)
This newer version has twice as many bones in the rig as the previous model and also more fluid rigging design. The model itself is less than half the tris count as the previous as well, making it a better fit for gaming. I've been working really hard to keep as much detail as possible while keeping the shape simple.
I'll be showing more progress as it happens! Also sharing my book very soon.