Hey craig, am enjoying seeing all the big cats being done in this community!
Agree with Tristan that it would be cool to see the layers individually.
I really think the animation could use another look. Getting the timings and the weight right will really help your simulation sing. It can be really useful to pass the bone rig to an animator. Even if they send you a blocking pass, you can iterate on that while they polish up the final keys.
Cheers!