Fantastic Voyage: Finch Rig- Legs and Spine

Started Rigging the Finch model using Alan's human rig tutorial, making some adjustments as I go. I decided to make the hips lower down and extend the spine on this, because the feet move a lot, where as there isn't very much hip and chest movement in the animation. The first image is my first attempt which I re-stared to accommodate a foot ball rig incase I needed it later on, but this rig will also be the base one I will be copying onto my other models, adding on arm and head rigs onto the separate models as I go.