Here's what I currently have for Antonia's knee at 150 degrees, rendered from within Wings.

I'm not quite happy with the front outline of the thigh yet. Also, the geometry hidden in the crease is pretty messy. I'll have to go back and forth between angles a number of times until this works, and then I'll probably make new versions of the earlier JCM stages based on this one.

-- I'm not mad at you, just Westphalian.