BELOW ARE IMAGES OF MESH AND JOINT ROTATION AFTER APPLYING THE EDITS DESCRIBED IN THE VIDEO.
In these screenshots, I am showing the entire mesh after I completed the learning module instructions for all limbs. In my video, this only included detaching all sections. After submission, I went back and reoriented all of the joints, bound them with appropriate sections of the mesh, and tested the articulation of each limb including individual fingers.
Mesh Images as of Video P1