It looks great!
I hate to say it, but when posing it with M4 poses the feet are detaching from the legs.
It happened after I used a zero pose and then they stay detached from that point on no matter what pose I tried (they move around with the pose but are not actually attached to the leg).
I am using 4.5.
Oops. I just tried zeroing the pose with a pose from another pose set and the feet stayed OK. So it looks like some pose sets may give problems.
Hands detaching with some poses too.