I like what you have so far for FK controls, the 3 rings to control the upper and lower part of the leg.
I also like the two IK controls, the one on the knee and on the feet. That's great, but there are things that are missing, Such as how the controls are constraint.
The hip control when its moved the other controls need to follow. When the knee its moved the ankle needs to follow and consecutively.
Here is the problem, I moved the hip and the others didn't followed.
Here as well
The image below shows the control that's its missing for FK and its located on the toes.
I think you already know this. I'm just testing out what you have. However, let me know how is it going and don't hesitate to email me any questions. If you want, I can write very specific controls that we are looking for and don't forget you can always proceed with whatever you think works great.




